Hall of Prayer for Good Harvests, Temple of Heaven (Tian Tan), UNESCO World Heritage Site, Beijing, China, Asia

Hall of Prayer for Good Harvests, Temple of Heaven (Tian Tan), UNESCO World Heritage Site, Beijing, China, Asia

Kiyomizu-dera temple, UNESCO World Heritage Site, Kyoto, Honshu, Japan, Asia

Stormy weather and visitors exploring at Moraine Lake, Banff National Park, UNESCO World Heritage Site, Canadian Rockies, Alberta, Canada, North America

Pelourinho Column, Se Cathedral, Porto (Oporto), Portugal, Europe

Rear view of man with hat lying on grass, Alpe Bassetta, Valtellina, Sondrio, Lombardy, Italy, Europe

Punta Uva beach in Puerto Viejo, Limon, Costa Rica, Central America

City Palace, entrance gateway to the Maharaja's Palace, Mysore, Karnataka, India, Asia

Tourists near the Gergeti Holy Trinity Church by the river Chkheri, under Mount Kazbegi at an elevation of 2170 meters in the Caucasus, Georgia, Central Asia, Asia

View of traditional blue domed churches and white houses at sunset in Oia, Santorini, Cyclades, Aegean Islands, Greek Islands, Greece, Europe

View of Oia village at dusk, Santorini, Cyclades, Aegean Islands, Greek Islands, Greece, Europe

Vaclavske namesti (Wenceslas Square), Nove Mesto (New Town), Prague, Czech Republic, Europe

Qutub Minar, UNESCO World Heritage Site, New Delhi, India, Asia

Tourist looking at St. Beatus Waterfall, Beatenberg, Canton of Bern, Switzerland, Europe

Woman tourist at Angkor Wat, Angkor, UNESCO World Heritage Site, Siem Reap, Cambodia, Indochina, Southeast Asia, Asia

Water tank, Sigiriya, UNESCO World Heritage Site, Central Province, Sri Lanka, Asia

Sandstone buttes in Monument Valley Navajo Tribal Park on the Arizona-Utah border, United States of America, North America

The Iron Gates, narrowest point of the Samaria Gorge, Samaria National Park, Agia Roumeli, Hania (Chania), Crete, Greek Islands, Greece, Europe

The historic building of the Faculty of Law, Humboldt University illuminated at night in Mitte, Berlin, Germany, Europe

View of Lincoln Memorial at dusk, Washington D.C., United States of America, North America

View of the Thomas Jefferson Memorial, Tidal Basin and cheery blossom trees, Washington D.C., United States of America, North America

Hiking through Torres del Paine National Park, Patagonia, Chile, South America

Orbetello Lagoon, Orbetello, Province of Grosseto, Maremma, Tuscany, Italy, Europe

Dubrovnik Harbour and walls, UNESCO World Heritage Site, Dubrovnik, Croatia, Europe

Banya Beach, Dubrovnik, Croatia, Europe

Venetian harbour of Chania, Crete, Greek Islands, Greece, Europe

Discovery Point and RRS Discovery in front of the V&A Dundee, Scotland's design museum, Dundee, Scotland, United Kingdom, Europe

Otamure Bay campsite at dawn, Whananaki, Northland Region, North Island, New Zealand, Pacific

Castlehill, The Royal Mile, Old Town, Edinburgh, Lothian, Scotland, United Kingdom, Europe

Cliff Geyser erupting in the Black Sand Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

Sunbeds and beach umbrellas, Cavoli Beach, Marciana, Elba Island, Livorno Province, Tuscany, Italy, Europe

Barcelona, Catalonia, Spain, Europe

Young woman standing in front of ice and rock formations at Natural Bridge, Yoho National Park, UNESCO World Heritage Site, British Columbia, The Rockies, Canada, North America

Merzouga Desert, Morocco, North Africa, Africa

Woman hiker enjoying the view from the Roys Peak trail near Wanaka, Otago, South Island, New Zealand, Pacific

Punta Uva beach in Puerto Viejo, Limon, Costa Rica, Central America

Palolem Beach, Goa, India, Asia

One of the ornate, carved and painted gopuram of the 11th century Brihadisvara Cholan temple, Thanjavur, Tamil Nadu, India, Asia

Sunset at Jama Masjid, Old Delhi, India, Asia

Woman tourist at Angkor Wat, Angkor, UNESCO World Heritage Site, Siem Reap, Cambodia, Indochina, Southeast Asia, Asia

The Badaling section of the Great Wall of China in winter, UNESCO World Heritage Site, Badaling, China, Asia

View over crowded beach to the Old Town (Stari Grad), and Budva Bay, Budva, Montenegro, Europe

Stunning Glacial Lakes, Torres del Paine National Park, Chile, South America

Playa Rancho Luna, Cienfuegos, Cuba, West Indies, Caribbean, Central America

Golden hour light, Brouwersgracht Canal, Amsterdam, North Holland, The Netherlands, Europe

Via dei Condotti, Piazza di Spagna, Spanish Steps, Scalinata di Trinita dei Monti (Trinita dei Monti Church), Rome, Lazio, Italy, Europe

Piazza Santa Maria in Trastevere, Trastevere, Rome, Lazio, Italy, Europe

View of the Venetian port of Chania, Crete, Greek Islands, Greece, Europe

Tourists enjoying Bernini's Fontana dei Quattro Fiumi (Fountain of Four Rivers) in Piazza Navona, Rome, Lazio, Italy, Europe

Playa Jardin Beach, Puerto de la Cruz, Tenerife, Canary Islands, Spain, Atlantic, Europe

A hiker at Fair Head, County Antrim, Ulster, Northern Ireland, United Kingdom, Europe

Monument to Marshal G K Zhukov in the foreground, State Historical Museum in background, Moscow, Russia, Europe

Woman enjoying an overflowing pool above a valley in the Kamandalu Ubud resort, Ubud, Bali, Indonesia, Southeast Asia, Asia

A female tourist sitting at a rooftop restaurant overlooking a temple in Phnom Penh, Cambodia, Indochina, Southeast Asia, Asia

Man peering over a wall beside a telescope along the Algarve coast of southern Portugal, Europe

San rock art cave paintings on the wall of a rocky overhang in the Cederberg, Western Cape, South Africa, Africa

Small pleasure boat in Forbidding Canyon, a narrow arm of Lake Powell, Glen Canyon National Recreation Area, Utah, United States of America, North America

Small west coast black sand beach resort, popular for its caves and cliff walk, Ajuy, Pajara, Fuerteventura, Canary Islands, Spain, Atlantic, Europe

Woman on a traditional Indonesian boat rrip to Marak Island near Padang in West Sumatra, Indonesia, Southeast Asia, Asia

Looking north from the summit slopes of Mt Teide, Tenerife, Spain, Europe

Tourists admire the historical Palazzo Pubblico and its Torre del Mangia, Piazza del Campo, Siena, UNESCO World Heritage Site, Tuscany, Italy, Europe

View of U-Bein Bridge at sunset, Amarapura, Mandalay, Mandalay Region, Myanmar (Burma), Asia

View of the Carrick a Rede Rope Bridge, Ballintoy, Ballycastle, County Antrim, Ulster, Northern Ireland, United Kingdom, Europe

Hiker on a mountain trail, Barre des Ecrins, Ecrins National Park, French Dauphine Alps, Haute Alpes, France, Europe

Byron Bay Main beach, New South Wales, Australia, Pacific

Convent of St. Francis and Church of Nossa Senhora das Vitorias, Vila do Porto, Santa Maria Island, Azores, Portugal, Atlantic, Europe

People enjoying an evening at Piazza Regina in Valletta, European Capital of Culture 2018, Malta, Mediterranean, Europe

A tourist in a cyclo on a busy street in the Old Quarter, Hanoi, Vietnam, Indochina, Southeast Asia, Asia

The last rays of sun disappear behind a rock face after a day of trekking in the Rila Mountains, Bulgaria, Europe

Visitors climb massive orange sand dune known as Dune 45, Sossusvlei area, Namib Desert, Namib-Naukluft, Namibia, Africa

Charles Bridge, Prague Castle and St. Vitus Cathedral, Prague, UNESCO World Heritage Site, Bohemia, Czech Republic, Europe

The Cathedral and Great Mosque of Cordoba (Mezquita) and Roman Bridge at twilight, UNESCO World Heritage Site, Cordoba, Andalucia, Spain, Europe

The Lion Gate, Mycenae, UNESCO World Heritage Site, Argolis, The Peloponnese, Greece, Europe

Diving off a Gulet sailing boat cruise in Gokkaya Bay, Antalya Province, Lycia, Anatolia, Mediterranean, Turkey, Asia Minor, Eurasia

Blooms on the lake side of Bellagio, Province of Como, Lake Como, Italian Lakes, Lombardy, Italy, Europe

Idro Lake in Sabbia Valley, Brescia province, Lombardy district, Italy, Europe

The 16th century Sahar ki Masjid, built near the royal palace for exclusive use of the sultans, Champaner, Gujarat, India, Asia

Visitors to the 11th century Brihadisvara Cholan temple, UNESCO World Heritage Site, Thanjavur, Tamil Nadu, India, Asia

Christmas Market, Staromestske namesti (Old Town Square), Stare Mesto (Old Town), UNESCO World Heritage Site, Prague, Czech Republic, Europe

Woman tourist at Angkor Wat, Angkor, UNESCO World Heritage Site, Siem Reap, Cambodia, Indochina, Southeast Asia, Asia

View over rocks of Piratininga towards Rio de Janeiro, sunset, Niteroi, State of Rio de Janeiro, Brazil, South America

Diwali holidaymakers taking camel rides along the shore at sunset, Mandvi, Gujarat, India, Asia

View of the Franciscan Monastery and its bell tower at dusk, Dubrovnik, Dubrovnik-Neretva county, Croatia, Europe

Palacio del Segundo Cabo in La Habana Vieja, UNESCO World Heritage Site, Old Havana, La Habana (Havana), Cuba, West Indies, Caribbean, Central America

View of The White House and spring blossom in Lafayette Square, Washington D.C., United States of America, North America

View across calm sea to the white limestone cliffs of the Scala dei Turchi, Realmonte, Porto Empedocle, Agrigento, Sicily, Italy, Mediterranean, Europe

Enjoying the peaceful and beautiful scenery of Torres del Paine National Park, Patagonia, Chile, South America

Dolphin of the fountain, Piazza Colonna, Palazzo Chigi (residence of the Prime Minister of Italy), Rome, Lazio, Italy, Europe

Arch of Constantine and Colosseum, South side, Colosseum to right, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Wood fence in the green pastures of Malga Brogles with the Odle in background, Val di Funes, South Tyrol, Dolomites, Italy, Europe

Little Venice, Horta, Mykonos, Cyclades, Greek Islands, Greece, Europe

Venetian harbour of Chania, Crete, Greek Islands, Greece, Europe

Urquhart Castle, Loch Ness, Highlands, Scotland, United Kingdom, Europe

View of Horseshoe Falls, Niagara Falls, Niagara, border of New York State, and Ontario, Canada, North America

Beautiful white sand beach on this popular holiday island, Koh Rong Sanloem Island, Sihanoukville, Cambodia, Indochina, Southeast Asia, Asia

White sand beach and turquoise water, Sun Island Resort, Nalaguraidhoo island, Ari atoll, Maldives, Indian Ocean, Asia

View of Torre dell'Orologio and ornate lamp post in St. Mark's Square, Venice, UNESCO World Heritage Site, Veneto, Italy, Europe

View of Smithsonian National Museum of Natural History in springtime, Washington D.C., United States of America, North America

Hai Nan Beach at sunset, Phuket, Thailand, Southeast Asia, Asia

Woman sitting on a white sand beach enjoying the turquoise water, Sun Island Resort, Nalaguraidhoo island, Ari atoll, Maldives, Indian Ocean, Asia