Aerial view of Burano Island, Venice Lagoon, UNESCO World Heritage Site, Veneto, Italy, Europe

Taj Mahal, UNESCO World Heritage Site, Agra, Uttar Pradesh, India, Asia

Royal Gate, Taj Mahal, UNESCO World Heritage Site, Agra, Uttar Pradesh, India, Asia

Taj Mahal, UNESCO World Heritage Site, Agra, Uttar Pradesh, India, Asia

Diwan-i-Aam audience hall, Red Fort, UNESCO World Heritage Site, Delhi, India, Asia

Royal Gate, Taj Mahal, UNESCO World Heritage Site, Agra, Uttar Pradesh, India, Asia

Taj Mahal, UNESCO World Heritage Site, Agra, Uttar Pradesh, India, Asia

Taj Mahal, UNESCO World Heritage Site, Agra, Uttar Pradesh, India, Asia

Taj Mahal, UNESCO World Heritage Site, Agra, Uttar Pradesh, India, Asia

Taj Mahal, UNESCO World Heritage Site, Agra, Uttar Pradesh, India, Asia

Taj Mahal, UNESCO World Heritage Site, Agra, Uttar Pradesh, India, Asia

Detail, Taj Mahal, UNESCO World Heritage Site, Agra, Uttar Pradesh, India, Asia

Taj Mahal, UNESCO World Heritage Site, Agra, Uttar Pradesh, India, Asia

Royal Gate, Taj Mahal, UNESCO World Heritage Site, Agra, Uttar Pradesh, India, Asia

Taj Mahal, UNESCO World Heritage Site, Agra, Uttar Pradesh, India, Asia

Royal Gate, Taj Mahal, UNESCO World Heritage Site, Agra, Uttar Pradesh, India, Asia

Taj Mahal, UNESCO World Heritage Site, Agra, Uttar Pradesh, India, Asia

Taj Mahal, UNESCO World Heritage Site, Agra, Uttar Pradesh, India, Asia

Neolithic stone circle and henge at Avebury, UNESCO World Heritage Site, Wiltshire, England, United Kingdom, Europe

Neolithic stone circle and henge at Avebury, UNESCO World Heritage Site, Wiltshire, England, United Kingdom, Europe

Neolithic stone circle and henge at Avebury, UNESCO World Heritage Site, Wiltshire, England, United Kingdom, Europe

Neolithic stone circle and henge at Avebury, UNESCO World Heritage Site, Wiltshire, England, United Kingdom, Europe

Princess of Wales conservatory glasshouses, Kew Gardens, Royal Botanic Gardens, UNESCO World Heritage Site, Kew, London, England, United Kingdom, Europe

Desert plants inside the Princess of Wales conservatory Royal Botanic Gardens, UNESCO World Heritage Site, Kew, London, England, United Kingdom, Europe

The Palm House at Royal Botanic Gardens, UNESCO World Heritage Site, Kew, London, England, United Kingdom, Europe

Xstrata Treetop Walkway, Royal Botanic Gardens, UNESCO World Heritage Site, Kew, London, England, United Kingdom, Europe

Fukien Chinese Assembly Hall gateway, Hoi An, UNESCO World Heritage Site, South Central Coast, Vietnam, Indochina, Southeast Asia, Asia

View of Lipari and Vulcano island from Belvedere Quattrocchi, Lipari Island, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe

Lipari Town, elevated view, Lipari Island, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe

Volcanic beach, Stromboli, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe

People walking on Gran Cratere rim, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe

Vernazza, Cinque Terre, UNESCO World Heritage Site, Liguria, Italy, Europe

Manarola, Cinque Terre, UNESCO World Heritage Site, Liguria, Italy, Europe

Vernazza, Cinque Terre, UNESCO World Heritage Site, Liguria, Italy, Europe

Fishing boats and harbor, Vernazza, Cinque Terre, UNESCO World Heritage Site, Liguria, Italy, Europe

Vernazza, Cinque Terre, UNESCO World Heritage Site, Liguria, Italy, Europe

Harbour and boats, Vernazza, Cinque Terre, UNESCO World Heritage Site, Liguria, Italy, Europe

Vernazza, Cinque Terre, UNESCO World Heritage Site, Liguria, Italy, Europe

Mosaics of female gymnasts, The Roman Villa del Casale (Villa Romana del Casale), UNESCO World Heritage Site, Piazza Armerina, Enna, Sicily, Italy, Europe

Ashness Pier Jetty with autumnal colours, Derwentwater, Keswick, Lake District National Park, UNESCO World Heritage Site, Cumbria, England, United Kingdom, Europe

Packhorse stone bridge over Watendlath Beck, Watendlath Tarn, Lake District National Park, UNESCO World Heritage Site, Cumbria, England, United Kingdom, Europe

Ashness Pier Jetty in autumn, Derwentwater, Keswick, Lake District National Park, UNESCO World Heritage Site, Cumbria, England, United Kingdom, Europe

Derwentwater in autumn, Lake District National Park, UNESCO World Heritage Site, Cumbria, England, United Kingdom, Europe

Giant monolithic stone Moai statues at Rano Raraku, Rapa Nui (Easter Island), UNESCO World Heritage Site, Chile, South America

A male wearing red coat stood in Maligne Canyon during winter conditions, Jasper National Park, UNESCO World Heritage Site, Alberta, Canada, North America

A man wearing red coat stood in Maligne Canyon during winter conditions, Jasper National Park, UNESCO World Heritage Site, Alberta, Canada, North America

Lake Louise at Sunrise, Banff National Park, UNESCO World Heritage Site, Alberta, Canadies Rockies, Canada, North America

Lake Louise at Sunrise, Banff National Park, UNESCO World Heritage Site, Alberta, Canadies Rockies, Canada, North America

Sagrada Familia, UNESCO World Heritage Site, Barcelona, Catalonia, Spain, Europe

The Acropolis, UNESCO World Heritage Site, Athens, Greece, Europe

Gothic Saint Vitus Cathedral and Prague Castle, Hradcany, UNESCO World Heritage Site, Prague, Czechia, Europe

Prague Castle and Charles Bridge reflected in Vltava River at twilight, UNESCO World Heritage Site, Lesser Town (Mala Strana), Prague, Czechia, Europe

Temple of Kukulkan (El Castillo) pyramid, Chichen Itza Mayan ruins, UNESCO World Heritage Site, Yucatan, Mexico, North America

Puerta de Tierra gateway entrance, Fortifications, Spanish military architecture of city walls, Campeche City, UNESCO World Heritage Site, Campeche State, Mexico, North America

Walls of the ball court (Juego de Pelota), Mayan ruins, Chichen Itza, UNESCO World Heritage Site, Yucatan, Mexico, North America

Carved stonework jaguar head with walls of the ball court, Juego de Pelota, Mayan ruins, Chichen Itza, UNESCO World Heritage Site, Yucatan, Mexico, North America

Carved stonework details, Temple of Panels (Templo de los Tableros Esculpidos), Mayan ruins, Chichen Itza, UNESCO World Heritage Site, Yucatan, Mexico, North America

Sacred Cenote, Mayan ruins, Chichen Itza, UNESCO World Heritage Site, Yucatan, Mexico, North America

Walls of the ball court (Juego de Pelota) with stone hoop, Mayan ruins, Chichen Itza, UNESCO World Heritage Site, Yucatan, Mexico, North America

Street and house in historic town with Christian church and Buddhist temple, UNESCO World Heritage Site, Galle, Sri Lanka, Asia

Bull elk (Cervus canadensis) bugling in the snow, Jasper National Park, UNESCO World Heritage Site, Alberta, Canada, North America

Rock cut Temple of Ramesses II (Rameses the Great) (Ramses the Great), Abu Simbel, UNESCO World Heritage Site, Nubia, Egypt, North Africa, Africa

El Deir (Ed Deir) (Monastery), Nabatean archaeological site, Petra, UNESCO World Heritage Site, Jordan, Middle East

McKenzie Lake, Fraser Island, UNESCO World Heritage Site, Queensland, Australia, Pacific

Portrait of local girl, UNESCO World Heritage Site, Simien Mountains National Park, Ethiopia, Africa

Last light on the Fitz Roy Mountain Range, Laguna Capri, Los Glaciares National Park, UNESCO World Heritage Site, Santa Cruz Province, Argentina, South America

Vineyards and Il Belvedere on the Val d'Orcia, UNESCO World Heritage Site, Tuscany, Italy, Europe

The historic centre of San Gimignano, UNESCO World Heritage Site, Tuscany, Italy, Europe

Nikko shrine, UNESCO World Heritage Site, Tochigi Prefecture, Honshu, Japan, Asia

Hoi An at dusk, Hoi An, UNESCO World Heritage Site, Quang Nam, Vietnam, Indochina, Southeast Asia, Asia

Woman carrying vegetables in street, Hoi An, UNESCO World Heritage Site, Quang Nam, Vietnam, Indochina, Southeast Asia, Asia

View at sunset over the Old Town, UNESCO World Heritage Site, Sanaa, Yemen, Middle East

Establishment of the Poseidoniasts, island of Delos, UNESCO World Heritage Site, Cyclades, Greek Islands, Greece, Europe

Backpackers in steamy light, Queets Vall, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America (U.S.A.), North America

The roofs of Lijiang Old Town, UNESCO World Heritage Site, with Lion Hill silhouetted against a clear sky, Lijiang, Yunnan, China, Asia

Lower Falls, Yellowstone River, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

Tourists hiking at Walpa Gorge, Kata Tjuta (The Olgas), UNESCO World Heritage Site, Uluru-Kata Tjuta National Park, Northern Territory, Australia, Pacific

Entrance of the Temple of the Sacred Tooth Relic, UNESCO World Heritage Site, Kandy, Sri Lanka, Asia

The Kiri Vihara dagoba (Stupa) Buddhist temple ruins, Polonnaruwa, UNESCO World Heritage Site, Sri Lanka, Asia

Royal Rock Temple, Golden Temple of Dambulla, UNESCO World Heritage Site, Dambulla, Sri Lanka, Asia

Elk herd, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

Manjanggul Lava Tube, UNESCO World Heritage Site, Jeju Island, South Korea, Asia

Anakena beach, monolithic giant stone Moai statues of Ahu Nau Nau, four of which have topknots, illuminated at dusk, Rapa Nui (Easter Island), UNESCO World Heritage Site, Chile, South America

Elevated view of Aya Sofya (Hagia Sophia) (Sancta Sophia), UNESCO World Heritage Site, in Sultanahmet, Istanbul, Turkey, Europe

Columbia Icefield, Jasper National Park, UNESCO World Heritage Site, Rocky Mountains, Alberta, Canada, North America

Haghbat (Haghpat) Monastery, UNESCO World Heritage Site, Alaverdi, Lori Province, Armenia, Central Asia, Asia

Buddha figures inside Dambulla cave Buddhist temple complex, UNESCO World Heritage Site, Sri Lanka, Asia

House foundation and six moai in the Tahai Archaeological Zone on Easter Island (Isla de Pascua) (Rapa Nui), UNESCO World Heritage Site, Chile, South America

Facade of cathedral seen from Praza do Obradoiro floodlit at night, Santiago de Compostela, UNESCO World Heritage Site, Galicia, Spain, Europe

Shaman rock, Maloe More (Little Sea), frozen lake during winter, Olkhon island, Lake Baikal, UNESCO World Heritage Site, Irkutsk Oblast, Siberia, Russia, Eurasia

Shaman rock, Maloe More (Little Sea), frozen lake during winter, Olkhon island, Lake Baikal, UNESCO World Heritage Site, Irkutsk Oblast, Siberia, Russia, Eurasia

Virgin Mary and Jesus depiction in the Mosque (Mezquita) and Cathedral of Cordoba, UNESCO World Heritage Site, Cordoba, Andalucia, Spain, Europe

Octagonal Yumedono hall in east precinct of Horyu-ji Horyuji Temple, Nara, UNESCO World Heritage Site, Japan, Asia

Qutab Minar Tower, UNESCO World Heritage Site, New Delhi, India, Asia

Autumn foliage reflected in the Merced River, Yosemite Valley, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America

Catedral de Sevilla (Seville Cathedral), UNESCO World Heritage Site, Seville, Andalusia, Spain, Europe

Doubtful Village, Wrangel Island, UNESCO World Heritage Site, Chuckchi Sea, Russian Far East, Russia, Europe

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

Fasidega Temple, Durbar Square, Bhaktapur, UNESCO World Heritage Site, Nepal, Asia

Foz de Iguazu (Iguacu Falls), the largest waterfalls in the world, Iguacu National Park, UNESCO World Heritage Site, Brazil, South America