Monument filled with human skulls at the Killing Fields of Choueng Ek, victims under the Khmer Rouge, Phnom Penh, Cambodia, Indochina, Southeast Asia, Asia

Stupa in front of the Silver Pagoda in the Royal Palace, in the capital city of Phnom Penh, Cambodia, Indochina, Southeast Asia, Asia

Baroque building of Duomo di Palermo (Palermo Cathedral) a prime example of Sicilian Baroque architecture, Palermo, Sicily, Italy, Europe

Fountain of Artemis in the middle of the roundabout at Archimedes Square (Piazza Archimede), Ortigia (Ortygia), Syracuse (Siracusa), UNESCO World Heritage Site, Sicily, Italy, Europe.

Duomo di Monreale (Monreale Cathedral), Monreale, near Palermo, Sicily, Italy, Europe

Duomo di Monreale at sunset (Monreale Cathedral), courtyard gardens, Monreale, near Palermo, Sicily, Italy, Europe

Tourist at Duomo di Monreale (Monreale Cathedral) in the courtyard gardens, Monreale, near Palermo, Sicily, Italy, Europe

Fountain of Artemis in Archimedes Square (Piazza Archimede) at night, Ortigia (Ortygia), Syracuse (Siracusa), UNESCO World Heritage Site, Sicily, Italy, Europe

Piazza Duomo at night, Syracuse Cathedral and Church of St. Lucia alla Badia, Ortigia (Ortygia), Syracuse (Siracusa), UNESCO World Heritage Site, Sicily, Italy, Europe

Traditional Moroccan Zallij tile work in the Ben Youssef Medersa, UNESCO World Heritage Site, Marrakech, Morocco, North Africa, Africa

Sidewalk cafe at the Schlossplatz square, Meersburg, Lake Constance, Baden Wurttemberg, Germany, Europe

Hotel and vine tavern Lowen at the town square, Meersburg, Lake Constance, Baden Wurttemberg, Germany, Europe

Courtyard and pool with traditional Moroccan ornate doorway in the Ben Youssef Medersa, UNESCO World Heritage Site, Marrakech, Morocco, North Africa, Africa

The Minaret of the Koutoubia Mosque, illuminated at dusk with single palm tree, UNESCO World Heritage Site, Marrakech, Morocco, North Africa, Africa

Illuminated Roman forum (Forum Romanum), St. Donat's church and the bell tower of St. Anastasia cathedral at dusk, Zadar, Dalmatia, Croatia, Europe

Old town of Rab town with Belfry of St. Justine's church, great bell tower of St. Mary's church, campanile of church of St. John and campanile of monastery of St. Andrew at dusk, Rab town, Rab Island, Kvarner region, Dalmatia, Adriatic Sea, Croatia, Europe

Statues in front of Gran Madre di Dio look over to Mole Antonelliana, Turin, Piedmont, Italy, Europe

The Gran Madre di Dio church dating from the 19th century it and decorated in the style of a classical temple, seen across the River Po, Turin, Piedmont, Italy, Europe

Reflection of the Eiffel Tower, Paris, France, Europe

Palazzo Madama lit up at night, Turin, Piedmont, Italy, Europe

Piazza Vittorio Veneto and the river Po, Turin, Piedmont, Italy, Europe

Quai Saint Etienne and the River Ill, Strasbourg, Bas-Rhin, Alsace, France, Europe

A man playing a trumpet in front of the Eiffel Tower, Paris, France, Europe

The Ponts Couverts dating from the 13th century, striding the River Ill, UNESCO World Heritage Site, Strasbourg, Bas-Rhin, Alsace, France, Europe

International Commerce Centre (ICC) from Sun Yat Sen Memorial Park, Hong Kong, China, Asia

Basilica of St. Peter, Pecs, Southern Transdanubia, Hungary, Europe

Chateau de la Bourdaisiere, Montlouis sur Loire, Indre et Loire, Centre, France, Europe

Elevated view over central Kingston, St. Andrews Parish, Jamaica, West Indies, Caribbean, Central America

Colonial architecture, Port Antonio, Jamaica, West Indies, Caribbean, Central America

Jain Temple roof detail, Jaisalmer, Western Rajasthan, India, Asia

Women in traditional dress in front of the Taj Mahal, UNESCO World Heritage Site, Agra, Uttar Pradesh, India, Asia

Westhaven Marina and city skyline illuminated at sunset, Waitemata Harbour, Auckland, North Island, New Zealand, Pacific

Elevated view over colorful houses of the Blue City towards Meherangarh Fort, Jodhpur, Western Rajasthan, India, Asia

Gadi Sagar, Jaisalmer, Western Rajasthan, India, Asia

Women in traditional dress standing in front of the Palace of the Winds (Hawa Mahal), Jaipur, Rajasthan, India, Asia

Devon House, Kingston, St. Andrew Parish, Jamaica, West Indies, Caribbean, Central America

Elevated view towards Meherangarh Fort with Blue City below, Jodhpur, Western Rajasthan, India, Asia

Devon House, Kingston, Jamaica, West Indies, Caribbean, Central America

Jaswant Thada and Meherangarh Fort, Jodhpur (The Blue City), Rajasthan, India, Asia

The Whaler's Lutheran church at the old Norwegian whaling station at Grytviken, South Georgia Island, Atlantic Ocean

Westhaven Marina & city skyline illuminated at dusk, Waitemata Harbour, Auckland, North Island, New Zealand, Australasia

Burj Al Arab Hotel, Jumeirah Beach, Dubai, United Arab Emirates, Middle East

Burj Al Arab Hotel, Jumeirah Beach, Dubai, United Arab Emirates, Middle East

Burj Al Arab Hotel, Jumeirah Beach, Dubai, United Arab Emirates, Middle East

St. Stephen's Cathedral, UNESCO World Heritage Site, Vienna, Austria, Europe

Cayan Tower, Dubai Marina, Dubai, United Arab Emirates, Middle East

Secession Building, Vienna, Austria, Europe

Cayan Tower in Dubai Marina, Dubai, United Arab Emirates, Middle East

Plague Column, Graben, Vienna, Austria, Europe

Austrian Parliament Building and Vienna City Hall, Vienna, Austria, Europe

Gloriette and French Garden, Schonbrunn Palace, UNESCO World Heritage Site, Vienna, Austria, Europe

Cayan Tower in Dubai Marina, Dubai, United Arab Emirates, Middle East

Cayan Tower in Dubai Marina, Dubai, United Arab Emirates, Middle East

St. Stephen's Cathedral, UNESCO World Heritage Site, Vienna, Austria, Europe

St. Charles Church, Vienna, Austria, Europe

St. Andrews Castle, St. Andrews, Fife, Scotland, United Kingdom, Europe

St. Andrews from St. Rules Tower at St. Andrews Cathedral, St. Andrews, Fife, Scotland, United Kingdom, Europe

St. Andrews Castle and West Sands from St. Rules Tower at St. Andrews Cathedral, St. Andrews, Fife, Scotland, United Kingdom, Europe

St. Andrews Cathedral ruin and graveyard, St. Andrews, Fife, Scotland, United Kingdom, Europe

Beaumaris Castle, UNESCO World Heritage Site, Anglesey, Wales, United Kingdom, Europe

Menai Bridge spanning the Menai Strait, Anglesey, Wales, United Kingdom, Europe

Menai Bridge spanning the Menai Strait, Anglesey, Wales, United Kingdom, Europe

Temple opposite Wat Jong Klang and Kham, Mae Hong Son Province, Thailand, Southeast Asia, Asia

Pashupatinath cremation ghats alongside the Bagmati River, UNESCO World Heritage Site, Kathmandu, Nepal, Asia

Kek Lok Si Temple during Chinese New Year period, Penang, Malaysia, Southeast Asia, Asia

Rooftops above Via Colombo in Riomaggiore, Cinque Terre, UNESCO World Heritage Site, Liguria, Italy, Europe

Chesma (Chesme) Church, Russian Orthodox, St. Petersburg, Russia, Europe

Interior mosaics, Church of the Saviour on Spilled Blood (Church of Resurrection), UNESCO World Heritage Site, St. Petersburg, Russia, Europe

La Tour Rose in the Saint Jean area of Vieux Lyon, Rhone, Rhone-Alpes, France, Europe

Passerelle du Palais de Justice over the River Saone, with the Palais de Justice in the background along with Notre Dame de Fourviere, Lyon, Rhone, Rhone-Alpes, France, Europe

Fontaine Bartholdi in Place des Terreaux, Lyon, Rhone, Rhone-Alpes, France, Europe

Paxtons Tower, Llanarthne, Carmarthenshire, Wales, United Kingdom, Europe

The Brazilian Congress, Brasilia, UNESCO World Heritage Site, Brazil, South America

The Brazilian Congress, Brasilia, UNESCO World Heritage Site, Brazil, South America

The Metropolitan Cathedral of Brasilia, UNESCO World Heritage Site, Brazil, South America

Boats at the Harbour in Riomaggiore, Cinque Terre, UNESCO World Heritage Site, Liguria, Italy, Europe

Central Station at dusk, Drottningtorget, Gothenburg, Sweden, Scandinavia, Europe

Victoria Memorial, Chowringhee, Kolkata (Calcutta), West Bengal, India, Asia

People bathing in the Hooghly River from a ghat near the Howrah Bridge, Kolkata (Calcutta), West Bengal, India, Asia

Victoria Memorial, Chowringhee, Kolkata (Calcutta), West Bengal, India, Asia

Victoria Memorial, Chowringhee, Kolkata (Calcutta), West Bengal, India, Asia

River Salzach with Hohensalzburg Castle and Kajetanerkirche Church, Salzburg, Salzburger Land, Austria, Europe

High angle view of the old town, UNESCO World Heritage Site, with Hohensalzburg Fortress, Dom Cathedral and Kappuzinerkirche Church at dusk, Salzburg, Salzburger Land, Austria, Europe

High angle view of the Old Town, UNESCO World Heritage Site, with Hohensalzburg Fortress, Dom Cathedral and Kappuzinerkirche Church, Salzburg, Salzburger Land, Austria, Europe

High angle view of the old town, UNESCO World Heritage Site, with Hohensalzburg Fortress, Dom Cathedral and Kappuzinerkirche Church at dusk, Salzburg, Salzburger Land, Austria, Europe

High angle view of the Old Town, UNESCO World Heritage Site, with Hohensalzburg Fortress, Dom Cathedral and Kappuzinerkirche Church, Salzburg, Salzburger Land, Austria, Europe

High angle view of the Old Town, UNESCO World Heritage Site, with Hohensalzburg Fortress and Dom Cathedral at dusk, Salzburg, Salzburger Land, Austria, Europe

High angle view of the Old Town, UNESCO World Heritage Site, with Hohensalzburg Fortress, Dom Cathedral and Kappuzinerkirche Church, Salzburg, Salzburger Land, Austria, Europe

High angle view of the Old Town, UNESCO World Heritage Site, with Hohensalzburg Fortress, Dom Cathedral and Kappuzinerkirche Church, Salzburg, Salzburger Land, Austria, Europe

High angle view of the Old Town, UNESCO World Heritage Site, with Hohensalzburg Fortress, Dom Cathedral and Kappuzinerkirche Church, Salzburg, Salzburger Land, Austria, Europe

High angle view with Dom Cathedral, Kajetanerkirche Church and Kappuzinerkirche Church, Old Town, UNESCO World Heritage Site, Salzburg, Salzburger Land, Austria, Europe

St. Paul's Cathedral taken from the One New Change shopping complex in the City of London, England, United Kingdom, Europe

St. Nicholas Church and St. George's Island in the background, Perast, Bay of Kotor, UNESCO World Heritage Site, Montenegro, Europe

View from St. Nicholas Church of Perast, Bay of Kotor, UNESCO World Heritage Site, Montenegro, Europe

St. Nicholas Church and St. George's Island in the background, Perast, Bay of Kotor, UNESCO World Heritage Site, Montenegro, Europe

Views of Perast from Our Lady of the Rocks, Bay of Kotor, UNESCO World Heritage Site, Montenegro, Europe

Machu Picchu Inca ruins and Huayna Picchu (Wayna Picchu), UNESCO World Heritage Site, Cusco Region, Peru, South America

Sao Francisco de Paula Church, Ouro Preto, UNESCO World Heritage Site, Minas Gerais, Brazil, South America

Place d'Alliance in the heart of the city, UNESCO World Heritage Site, Nancy, Meurthe-et-Moselle, France, Europe

Raglan Castle, Monmouthshire, Wales, United Kingdom, Europe