Opera House and Harbour Bridge, Sydney, New South Wales, Australia

Holy Well in foreground, Holy Spirit Church, Holy Trinity Saint Sergius Lavra, UNESCO World Heritage Site, Sergiev Posad, Russia, Europe

Fulacht fiadh water trough and fireplace building at Drombeg stone circle, County Cork, Munster, Republic of Ireland, Europe

Chapel Over-the-Well, The Holy Trinity St. Sergius Lavra, UNESCO Site, Sergiev Posad, Golden Ring, Moscow Oblast, Russia, Europe

Sunset at the entrance gate of Pingyao, renowned for its well-preserved ancient city wall, UNESCO World Heritage Site, Shanxi, China, Asia

Martolet archeological site containing the first Christian churches on the site, as well as the burial site of St. Mauritius, Saint-Maurice d'Agaune Abbey, Valais, Switzerland, Europe

Pingyao, renowned for its well-preserved ancient city wall, UNESCO World Heritage Site, Shanxi, China, Asia

Cloister, stunning Garden of Villa Cimbrone in spring, Ravello, Amalfi Coast, UNESCO World Heritage Site, Campania, Italy, Europe

Victoria Memorial, The Mall, London, England, United Kingdom, Europe

Cloister, stunning Garden of Villa Cimbrone, Ravello, Amalfi Coast, UNESCO World Heritage Site, Campania, Italy, Europe

Prague Castle, Gothic Metropolitan Cathedral of Saints Vitus, Wenceslas and Adalbert, UNESCO World Heritage Site, Prague, Czech Republic (Czechia), Europe

Ancient Well, Delos Island, UNESCO World Heritage Site, Cyclades Group, Greek Islands, Greece, Europe

Bagrati Cathedral (Cathedral of the Dormition) (Kutaisi Cathedral) at sunset, UNESCO World Heritage Site, Kutaisi, Imereti Region, Georgia, Caucasus, Asia

Fragment of well preserved carving, Baalbek, UNESCO World Heritage Site, Lebanon, Middle East

Helical Stepwell, Champaner-Pavagadh Archaeological Park, UNESCO World Heritage Site, Gujarat, India, Asia

Bedouins pulling water in a beautiful rock amphitheatre in the Ennedi plateau, UNESCO World Heritage Site, Chad, Africa

Farmer with work clothes drawing water from old well in Vinales National Park, UNESCO World Heritage Site, Pinar del Rio Province, Cuba, West Indies, Central America

Well preserved fossils in the Messel Pit, UNESCO World Heritage Site, Hesse, Germany, Europe

The Pak Ou caves, a well known Buddhist site and place of pilgrimage, 25km from Luang Prabang, Laos, Indochina, Southeast Asia, Asia

Well preserved fossils in the Messel Pit, UNESCO World Heritage Site, Hesse, Germany, Europe

The Pak Ou caves, a well known Buddhist site and place of pilgrimage, 25km from Luang Prabang, Laos, Indochina, Southeast Asia, Asia

Jesuit Block in Alta Garcia, UNESCO World Heritage Site, Argentina, South America

Stone gate in Pingyao, renowned for its well-preserved ancient city wall, UNESCO World Heritage Site, Shanxi, China, Asia

Headquarters building showing courtyard and well, Roman settlement and fort at Vindolanda, Roman Wall south, UNESCO World Heritage Site, Northumbria, England, United Kingdom, Europe

The Pak Ou caves, a well known Buddhist site and place of pilgrimage, 25km from Luang Prabang, Laos, Indochina, Southeast Asia, Asia

Stone gate in Pingyao, renowned for its well-preserved ancient city wall, UNESCO World Heritage Site, Shanxi, China, Asia

Overlook of Pingyao, renowned for its well-preserved ancient city wall, UNESCO World Heritage Site, Shanxi, China, Asia

Well preserved wheelhouses (communal round houses), Jarlshof historic site, South Mainland, Shetland Islands , Scotland, United Kingdom, Europe

Well preserved wheelhouses (communal round houses), Jarlshof historic site, South Mainland, Shetland Islands , Scotland, United Kingdom, Europe

Mongolian-russian mining venture on outskirts of erdenet city, population of 80,000 dictates work as well as life in soviet -style city. 5,200 employees work at this site excavating up to 25.2 million tons of iron year

Well, Town Square and towers, San Gimignano, UNESCO World Heritage Site, Tuscany, Italy, Europe

Locals queueing to fill up containers with water at a well in Patan's Durbar Square, UNESCO World Heritage Site, Kathmandu, Nepal, Asia

Well, Town Square and towers, San Gimignano, UNESCO World Heritage Site, Tuscany, Italy, Europe

Well chapel, Maulbronn Abbey, UNESCO World Heritage Site, Maulbronn, Black Forest (Schwarzwald), Baden-Wurttemberg, Germany, Europe

Well, Town Square and Towers, San Gimignano, UNESCO World Heritage Site, Tuscany, Italy, Europe

Well, Town Square and towers, San Gimignano, UNESCO World Heritage Site, Tuscany, Italy, Europe

A conventional horsehead oil well pump jack unit and storage tank battery on an oil well site in Utah.

Aerial view of Punta Allen Sian Ka'an Reserve, Yucatan Peninsula, Mexico. Red lagoon near Boca Paila Bridge. In the language of the Mayan peoples who once inhabited this region, Sian Ka'an means Origin of the Sky. Located on the east coast of the Yucatán peninsula, this biosphere reserve contains tropical forests, mangroves and marshes, as well as a large marine section intersected by a barrier reef. It provides a habitat for a remarkably rich flora and a fauna comprising more than 300 species of birds, as well as a large number of the region's characteristic terrestrial vertebrates, which cohabit in the diverse environment formed by its complex hydrological system. Along its roughly 120 kilometres of coastline, the property covers over 400,000 hectares of land ranging from sea level to only ten m.a.s.l. The property boasts diverse tropical forests, palm savannah, one of the most pristine wetlands in the region, lagoons, extensive mangrove stands, as well as sandy beaches and dunes. The 120,000 hectares of marine area protect a valuable part of the Mesoamerican Barrier Reef and seagrass beds in the shallow bays. The lush green of the forests and the many shades of blue of the lagoons and the Caribbean Sea under a wide sky offer fascinating visual impressions.

Aerial view of Punta Allen Sian Ka'an Reserve, Yucatan Peninsula, Mexico. Red lagoon near Boca Paila Bridge. In the language of the Mayan peoples who once inhabited this region, Sian Ka'an means Origin of the Sky. Located on the east coast of the Yucatán peninsula, this biosphere reserve contains tropical forests, mangroves and marshes, as well as a large marine section intersected by a barrier reef. It provides a habitat for a remarkably rich flora and a fauna comprising more than 300 species of birds, as well as a large number of the region's characteristic terrestrial vertebrates, which cohabit in the diverse environment formed by its complex hydrological system. Along its roughly 120 kilometres of coastline, the property covers over 400,000 hectares of land ranging from sea level to only ten m.a.s.l. The property boasts diverse tropical forests, palm savannah, one of the most pristine wetlands in the region, lagoons, extensive mangrove stands, as well as sandy beaches and dunes. The 120,000 hectares of marine area protect a valuable part of the Mesoamerican Barrier Reef and seagrass beds in the shallow bays. The lush green of the forests and the many shades of blue of the lagoons and the Caribbean Sea under a wide sky offer fascinating visual impressions.

Aerial view of Punta Allen Sian Ka'an Reserve, Yucatan Peninsula, Mexico. Red lagoon near Boca Paila Bridge. In the language of the Mayan peoples who once inhabited this region, Sian Ka'an means Origin of the Sky. Located on the east coast of the Yucatán peninsula, this biosphere reserve contains tropical forests, mangroves and marshes, as well as a large marine section intersected by a barrier reef. It provides a habitat for a remarkably rich flora and a fauna comprising more than 300 species of birds, as well as a large number of the region's characteristic terrestrial vertebrates, which cohabit in the diverse environment formed by its complex hydrological system. Along its roughly 120 kilometres of coastline, the property covers over 400,000 hectares of land ranging from sea level to only ten m.a.s.l. The property boasts diverse tropical forests, palm savannah, one of the most pristine wetlands in the region, lagoons, extensive mangrove stands, as well as sandy beaches and dunes. The 120,000 hectares of marine area protect a valuable part of the Mesoamerican Barrier Reef and seagrass beds in the shallow bays. The lush green of the forests and the many shades of blue of the lagoons and the Caribbean Sea under a wide sky offer fascinating visual impressions.

Montserrat is a mountain near Barcelona, in Catalonia. It is the site of a Benedictine abbey, Santa Maria de Montserrat, which hosts the Virgin of Montserrat sanctuary. Montserrat is a multi-peaked mountain range near Barcelona, in Catalonia, Spain. It is part of the Catalan Pre-Coastal Range. The main peaks are Sant Jeroni (1,236 m), Montgrós (1,120 m) and Miranda de les Agulles (903 m). It is well known as the site of the Benedictine abbey, Santa Maria de Montserrat, which hosts the Virgin of Montserrat sanctuary. Montserrat literally means "saw (serrated, like the common handsaw) mountain" in Catalan. It describes its peculiar aspect with multitude of rock formations which are visible from a great distance. The mountain is composed of strikingly pink conglomerate, a form of sedimentary rock. Montserrat was designated as a National Park in 1987. On this mountain we will have access to the Monastery of Montserrat which houses the virgin that gives its name to the monastery, although it is also known as La Moreneta

Aerial view of Punta Allen Sian Ka'an Reserve, Yucatan Peninsula, Mexico. In the language of the Mayan peoples who once inhabited this region, Sian Ka'an means Origin of the Sky. Located on the east coast of the Yucatán peninsula, this biosphere reserve contains tropical forests, mangroves and marshes, as well as a large marine section intersected by a barrier reef. It provides a habitat for a remarkably rich flora and a fauna comprising more than 300 species of birds, as well as a large number of the region's characteristic terrestrial vertebrates, which cohabit in the diverse environment formed by its complex hydrological system. Along its roughly 120 kilometres of coastline, the property covers over 400,000 hectares of land ranging from sea level to only ten m.a.s.l. The property boasts diverse tropical forests, palm savannah, one of the most pristine wetlands in the region, lagoons, extensive mangrove stands, as well as sandy beaches and dunes. The 120,000 hectares of marine area protect a valuable part of the Mesoamerican Barrier Reef and seagrass beds in the shallow bays. The lush green of the forests and the many shades of blue of the lagoons and the Caribbean Sea under a wide sky offer fascinating visual impressions.

Aerial view of Punta Allen Sian Ka'an Reserve, Yucatan Peninsula, Mexico. Red lagoon near Boca Paila Bridge. In the language of the Mayan peoples who once inhabited this region, Sian Ka'an means Origin of the Sky. Located on the east coast of the Yucatán peninsula, this biosphere reserve contains tropical forests, mangroves and marshes, as well as a large marine section intersected by a barrier reef. It provides a habitat for a remarkably rich flora and a fauna comprising more than 300 species of birds, as well as a large number of the region's characteristic terrestrial vertebrates, which cohabit in the diverse environment formed by its complex hydrological system. Along its roughly 120 kilometres of coastline, the property covers over 400,000 hectares of land ranging from sea level to only ten m.a.s.l. The property boasts diverse tropical forests, palm savannah, one of the most pristine wetlands in the region, lagoons, extensive mangrove stands, as well as sandy beaches and dunes. The 120,000 hectares of marine area protect a valuable part of the Mesoamerican Barrier Reef and seagrass beds in the shallow bays. The lush green of the forests and the many shades of blue of the lagoons and the Caribbean Sea under a wide sky offer fascinating visual impressions.

Palms and old pier in Punta Allen Sian Ka'an Reserve, Yucatan Peninsula, Mexico. In the language of the Mayan peoples who once inhabited this region, Sian Ka'an means Origin of the Sky. Located on the east coast of the Yucatán peninsula, this biosphere reserve contains tropical forests, mangroves and marshes, as well as a large marine section intersected by a barrier reef. It provides a habitat for a remarkably rich flora and a fauna comprising more than 300 species of birds, as well as a large number of the region's characteristic terrestrial vertebrates, which cohabit in the diverse environment formed by its complex hydrological system. Along its roughly 120 kilometres of coastline, the property covers over 400,000 hectares of land ranging from sea level to only ten m.a.s.l. The property boasts diverse tropical forests, palm savannah, one of the most pristine wetlands in the region, lagoons, extensive mangrove stands, as well as sandy beaches and dunes. The 120,000 hectares of marine area protect a valuable part of the Mesoamerican Barrier Reef and seagrass beds in the shallow bays. The lush green of the forests and the many shades of blue of the lagoons and the Caribbean Sea under a wide sky offer fascinating visual impressions.

Fontana dei Quattro Fiumi, Fountain of the Four Rivers, artist Bernini, in front of church Sant´Agnese, Piazza Navona, UNESCO World Heritage Site Rome, Rome, Latium, Lazio, Italy

Fountain on Piazza della Rotonda with Pantheon at night, illuminated, UNESCO World Heritage Site Rome, Rome, Latium, Lazio, Italy

Fountain formed as a human face, Cinque Terre, National Park Cinque Terre, UNESCO World Heritage Site Cinque Terre, Liguria, Italy

Trevi Fountain, Fontana di Trevi, Rome, UNESCO World Heritage Site Rome, Latium, Lazio, Italy

Panorama of Trevi fountain, Fontana di Trevi, illuminated, Rome, UNESCO World Heritage Site Rome, Latium, Lazio, Italy

Eagle on Goslar's market fountain, Harz Mountains, Lower Saxony, northern Germany, UNESCO, World Heritage Site, list

Illuminated fountain Frankoniabrunnen and Wuerzburger residence in the evening light, Wuerzburg, UNESCO World Heritage Site Wuerzburg, Bavaria, Germany

Illuminated baptistery and Pisa cathedral with fountain in the foreground, Pisa, UNESCO world heritage site, Tuscany, Italy

Panorama of the residence, UNESCO World Heritage Site, Wuerzburg, Bavaria, Germany

Illuminated fountain Zaeringerbrunnen and clock tower Zytglogge, Bern, UNESCO World Heritage Site Bern, Switzerland

Illuminated fountain Frankoniabrunnen and Wuerzburger residence at night, Wuerzburg, UNESCO World Heritage Site Wuerzburg, Bavaria, Germany

View over busy Platia Ippokratou with Thalassini Gate in background in the evening, Rhodes Town, Rhodes, Greece, (Since 1988 part of the UNESCO World Heritage Site)

City square of San Gimignano with fountain, UNESCO World Heritage Site San Gimignano, San Gimignano, Tuscany, Italy

City square of San Gimignano with fountain, UNESCO World Heritage Site San Gimignano, San Gimigliano, Tuscany, Italy

Herd of Wildebeest, Wildebai, or Gnu (Connochaetes) crossing the Mara river in Masai Mara, Kenya, Africa

Schloss Neuschwanstein Castle near Fuessen, Allgaeu, Bavaria, Germany, Europe

Waitress, Wies\'n, October fest, Munich, Bavaria, Germany, Europe

Young Buddhist monk with a red umbrella, Settawya Pagoda, Mingun, Burma, Myanmar, South East Asia

Quadriga at the Brandenburger Tor Brandenburg Gate, Berlin, Germany, Europe

Samba school Portela, Carnaval 2010, Sambodromo, Rio de Janeiro, Brazil

Smathers Beach, Key West, Florida Keys, Florida, USA

Waitress, Wies\'n, October fest, Munich, Bavaria, Germany, Europe

Llama (Llama glama) at the ruins of Machu Picchu, near Cusco, Andes, Peru, South America

Morning Glory Pool, a hot spring in Upper Geyser Basin, Yellowstone National Park, Wyoming, USA

The Wave, rock formation in Coyote Buttes North, Paria Canyon-Vermilion Cliffs Wilderness, Utah, Arizona, USA

Samba school Unidos do Porto da Pedra, Carnaval 2010, Sambodromo, Rio de Janeiro, Brasilien, Suedamerika

Semperoper opera, with banners, at Theaterplatz square, fireworks, Dresden, Saxony, Germany, Europe

Samba dancer and model Luiza Brunet, Imperatriz Leopoldense samba school, Carnaval in Rio de Janeiro 2010, Brazil, South America

Uniao da Ilha samba school, dancer, Carnaval 2010, Sambodromo, Rio de Janeiro, Brazil, South America

Morning Glory Pool, a hot spring in Upper Geyser Basin, Yellowstone National Park, Wyoming, USA

Sculpture in front of Leaning Tower of Pisa, Torre pendente, Toscana, Tuscany, Italy, Europe

Speyer Cathedral, UNESCO World Heritage Site, with Maximilianstrasse, main street, Speyer, Rhineland-Palatinate, Germany, Europe

Semperoper opera, with banners, at Theaterplatz square, fireworks, Dresden, Saxony, Germany, Europe

Llama (Llama glama) at the ruins of Machu Picchu, near Cusco, Andes, Peru, South America

Schloss Neuschwanstein Castle near Fuessen, Allgaeu, Bavaria, Germany, Europe

Souk, bazar of Damascus, Unesco World Heritage Site, Syria, Middle East, West Asia

Dancer of Uniao da Ilha samba school at the Carnaval in Rio de Janeiro 2010, Brazil, South America

Treasure house of the Ottomans in the courtyard of the Umayyad-Mosque in Damascus, Syria, Middle East, Asia

El Capitolio or National Capitol Building, old town, UNESCO World Hertiage Site, Villa San Cristobal de La Habana, La Habana, Havana, Republic of Cuba, Caribbean, Central America

Settawya Pagoda, young Buddhist monk with a red umbrella, Mingun, Burma, Myanmar, South East Asia

Head of Medusa, Medusa medallion, relief, New Forum, Severan Forum of Septimus Severus, Leptis Magna, Libya, North Africa, Africa

Tourist in The Wave, banded eroded Navajo sandstone rocks with Liesegang Bands, Liesegangen Rings, or Liesegang Rings, North Coyote Buttes, Paria Canyon, Vermillion Cliffs National Monument, Arizona, Utah, USA

Unidos da Tijuca samba school, laughing young woman in costume, Carnaval 2010, Sambodromo, Rio de Janeiro, Brazil, South America

Christianity, Roman Catholic Church, main entrance portal with a crucifix and balcony, facade, St. Peter's Basilica, Basilica di San Pietro in Vaticano, Vatican, Vatican City, Rome, Lazio, Italy, Southern Europe, Europe

Shadow of a photographer on The Wave, banded eroded Navajo sandstone rocks with Liesegang Bands, Liesegangen Rings, or Liesegang Rings, North Coyote Buttes, Paria Canyon, Vermillion Cliffs National Monument, Arizona, Utah, USA

Chinese woman using a bow and arrow at the Jiayuguan Fortress with two gatehouses at the western end of the Great Wall of China, Silk Road, Gansu, China, Asia

Best Agers, bicyclists, bike tour, Nymphenburg Palace, Munich, Bavaria, Germany, Europe

Dancer of Uniao da Ilha samba school at the Carnaval in Rio de Janeiro 2010, Brazil, South America

Shepherd and flock of sheep in front of the ruins of the Byzantine Resafa fortress, Sergiopolis, Syria, Asia

Antique city of Ephesus, Efes, Turkey, Western Asia

Waitress, Wies\'n, October fest, Munich, Bavaria, Germany, Europe

Samba school Portela, Carnaval 2010, Sambodromo, Rio de Janeiro, Brazil

Fountain of the Four Rivers, designed by Bernini, Piazza Navona, Rome, Italy, Europe

Brandenburg Gate, fireworks, Berlin, Germany, Europe

Bavarian man in tradtional costume, Wies\'n, October fest, Munich, Bavaria, Germany, Europe

Souvenirs of the Statue of Liberty, Liberty Island, New York City, New York, United States, North America