Gothic detail on the facade of the Duomo (Cathedral), including the sun symbol, Siena, UNESCO World Heritage Site, Tuscany, Italy, Europe

Bet Giorgis, rock cut church, Lalibela, Ethiopia, Africa

View along the Grand Canal towards Santa Maria Della Salute from Academia Bridge, Venice, UNESCO World Heritage Site, Veneto, Italy, Europe

Santa Maria Della Salute, Venice, UNESCO World Heritage Site, Veneto, Italy, Europe

The Duomo (Cathedral), Florence, UNESCO World Heritage Site, Tuscany, Italy, Europe

Gondolas, S. Marco Canal, island and church of S. Giorgio Maggiore, Venice, UNESCO World Heritage Site, Veneto, Italy, Europe

Boats and waterfront, Positano, Costiera Amalfitana (Amalfi Coast), UNESCO World Heritage Site, Campania, Italy, Europe

The Duomo (Cathedral), Florence, UNESCO World Heritage Site, Tuscany, Italy, Europe

Duomo (Cathedral), Florence, UNESCO World Heritage Site, Tuscany, Italy, Europe

Ivan Franco Opera and Ballet Theatre, Old Town, Lviv, UNESCO World Heritage Site, Ukraine, Europe

West front, Reims Cathedral, UNESCO World Heritage Site, Champagne, France, Europe

View at dusk along Grand Canal towards Santa Maria Della Salute from Accademia Bridge, Venice, UNESCO World Heritage Site, Veneto, Italy, Europe

Mont Saint Michel (Mont-St. Michel), UNESCO World Heritage Site, Manche, Normandie (Normandy), France, Europe

Mont Saint Michel (Mont-St. Michel), UNESCO World Heritage Site, Manche, Normandie (Normandy), France, Europe

Exterior of the Christian cathedral, the Duomo, S. Maria del Fiore, Florence, UNESCO World Heritage Site, Tuscany, Italy, Europe

Mont Saint Michel (Mont St.-Michel), UNESCO World Heritage Site, Manche, Normandie (Normandy), France, Europe

Elevated view of the Duomo (dome of the cathedral), Florence, UNESCO World Heritage Site, Tuscany, Italy, Europe

River Danube and Parliament building, Budapest, UNESCO World Heritage Site, Hungary, Europe

Santa Croce church at night, Piazza Santa Croce, Florence, UNESCO World Heritage Site, Tuscany, Italy, Europe

Courtyard with Maltese balcony and trees, Grand Master's Palace, (Palace of the Grand Master) former residence Knights' Grand Masters, UNESCO World Heritage Site, Valletta, Malta, Europe

Torii gate at Fushimi Inari Jinja, Shinto shrine, UNESCO World Heritage Site, Kyoto, Honshu, Japan, Asia

Pilgrims on Daimon-zaka Nachi Tokaido pilgrimage route, UNESCO World Heritage Site, Wakayama Prefecture, Honshu, Japan, Asia

Pagoda, Shinto Shrine, Nachi no taki waterfall, UNESCO World Heritage Site, Wakayama Prefecture, Honshu, Japan, Asia

Torii gate of Itsukushima jinja Shinto Shrine, UNESCO World Heritage Site, Miyajima Island, Hiroshima Prefecture, Honshu, Japan, Asia

Torii gate at Fushimi Inari Jinja, Shinto shrine, UNESCO World Heritage Site, Kyoto, Honshu, Japan, Asia

Mount Fuji 3776m and Arakura Sengen Jinja Shinto shrine, UNESCO World Heritage Site, Honshu, Japan, Asia

Pagoda at Itsukushima jinja Shinto Shrine, UNESCO World Heritage Site, Miyajima Island, Hiroshima Prefecture, Honshu, Japan, Asia

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

Torii gate of Itsukushima jinja Shinto Shrine, UNESCO World Heritage Site, Miyajima Island, Hiroshima Prefecture, Honshu, Japan, Asia

Pilgrims on Daimon-zaka Nachi Tokaido pilgrimage route, UNESCO World Heritage Site, Wakayama Prefecture, Honshu, Japan, Asia

Shinto Shrine, Nachi no taki waterfall, UNESCO World Heritage Site, Wakayama Prefecture, Honshu, Japan, Asia

Pilgrims on Daimon-zaka Nachi Tokaido pilgrimage route, UNESCO World Heritage Site, Wakayama Prefecture, Honshu, Japan, Asia

Pagoda, Shinto Shrine, Nachi no taki waterfall, UNESCO World Heritage Site, Wakayama Prefecture, Honshu, Japan, Asia

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

Torii gate of Itsukushima jinja Shinto Shrine, UNESCO World Heritage Site, Miyajima Island, Hiroshima Prefecture, Honshu, Japan, Asia

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

The Duomo (cathedral) and the Leaning Tower of Pisa, UNESCO World Heritage Site, Pisa, Tuscany, Italy, Europe

The 19th century Russian Orthodox Alexander Nevsky Cathedral on Toompea, Old Town, UNESCO World Heritage Site,Tallinn, Estonia, Baltic States, Europe

Yangdong folk village, UNESCO World Heritage Site, Gyeongsangbuk-do, South Korea, Asia

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

Rock carved Buddha image, UNESCO World Heritage Site, Mount Namsan National Park, Gyeongju, Gyeongsangbuk-do, South Korea, Asia

Angel sculptures, Alfredo Ceschiatti, Metropolitan Cathedral, UNESCO World Heritage Site, Brasilia, Federal District, Brazil, South America

Yangdong folk village, UNESCO World Heritage Site, Gyeongsangbuk-do, South Korea, Asia

Royal Tombs burial mounds at sunrise, UNESCO World Heritage Site, Gyeongju, Gyeongsangbuk-do, South Korea, Asia

Mount Ngauruhoe, 2287m, on the Tongariro Crossing, in the oldest national park in New Zealand, Tongariro National Park, UNESCO World Heritage Site, Taupo, North Island, New Zealand, Pacific

Hikers walking towards Barn Bluff on the overland track in Cradle Mountain Lake St. Clair National Park, part of Tasmanian Wilderness, UNESCO World Heritage Site, Tasmania, Australia, Pacific

Cheomseongdae Astronomical Observation Tower, Royal Tombs burial mounds, UNESCO World Heritage Site, Gyeongju, Gyeongsangbuk-do, South Korea, Asia

Ornamental guard on the last remaining intact Ming Dynasty city wall in China, Pingyao (Ping Yao), UNESCO World Heritage Site, Shanxi Province, China, Asia

Carved Buddha images at Longmen Caves, Dragon Gate Grottoes dating from between the 6th and 8th centuries, UNESCO World Heritage Site, Henan Province, China, Asia

A reflection of a palace wall tower surrounded by the moat of The Forbidden City Palace Museum, UNESCO World Heritage Site, Beijing, China, Asia

Wall tower of The Forbidden City Palace Museum, UNESCO World Heritage Site, Beijing, China, Asia

Christmas decorations reflected in a canal, Murano, Venice, UNESCO World Heritage Site, Veneto, Italy, Europe

Santa Maria della Salute church, Dorsoduro district, Venice, UNESCO World Heritage Site, Veneto, Italy, Europe

Spanish Old Town, ancestral homes and colonial era mansions built by Chinese merchants, UNESCO World Heritage Site, Vigan City, Ilocos Province, Luzon Island, Philippines, Southeast Asia, Asia

Late afternoon light on Horsetail Falls, a phenomenon which occurs only one or two days a year in late February due to the angle of the sun and snow melt on the cliffs, Yosemite Valley, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America

Late afternoon light on Horsetail Falls, a phenomenon which occurs only one or two days a year in late February due to the angle of the sun and snow melt on the cliffs, Yosemite Valley, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America

Fresh snow fall on El Capitan in Yosemite Valley, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America

Christmas tree in St. Marks Square, San Marco, Venice, UNESCO World Heritage Site, Veneto, Italy, Europe

Christmas decoration on a canal at night, Murano, Venice, UNESCO World Heritage Site, Veneto, Italy, Europe

A priest stands at the entrance to the rock-hewn church of Bet Gabriel-Rufael, in Lalibela, UNESCO World Heritage Site, Ethiopia, Africa

A priest stands at the entrance to the rock-hewn church of Bet Gabriel-Rufael, in Lalibela, UNESCO World Heritage Site, Ethiopia, Africa

Sunday Mass is celebrated at the rock-hewn church of Bet Giyorgis (St. George), in Lalibela, UNESCO World Heritage Site, Ethiopia, Africa

Statues on Charles Bridge, UNESCO World Heritage Site, with the dome of the Church of St. Francis and Old Town Bridge Tower in the background, Old Town, Prague, Czech Republic, Europe

Stained glass rose window viewed from the nave, Notre-Dame Cathedral, UNESCO World Heritage Site, Reims, Marne, Champagne-Ardenne, France, Europe

Yangdong folk village, UNESCO World Heritage Site, Gyeongsangbuk-do, South Korea, Asia

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

Military soldiers drill marching outside the Forbidden City Palace Museum, UNESCO World Heritage Site, Beijing, China, Asia

Military soldiers drill marching outside the Forbidden City Palace Museum, UNESCO World Heritage Site, Beijing, China, Asia

St. Basils Cathedral, Red Square, UNESCO World Heritage Site, Moscow, Russia, Europe

Traditional architecture of riverside restaurant in Lijiang Old Town, Lijiang, UNESCO World Heritage Site, Yunnan Province, China, Asia

A Bai girl carrying buckets of water in front of a water wheel in Lijiang Old Town, UNESCO World Heritage Site, Yunnan Province, China, Asia

Musicians in a traditional Naxi orchestra, Lijiang Old Town, UNESCO World Heritage Site, Yunnan Province, China, Asia

Musicians in a traditional Naxi orchestra, Lijiang Old Town, UNESCO World Heritage Site, Yunnan Province, China, Asia

Temple building at Wulong Natural Rock Bridges, UNESCO World Heritage Site, Chongqing Municipality, China, Asia

Temple building at Wulong Natural Rock Bridges, UNESCO World Heritage Site, Chongqing Municipality, China, Asia

Bamboo river rafting at Tianyou Feng Heavenly Tour Peak in Mount Wuyi National Park, UNESCO World Heritage Site, Fujian Province, China, Asia

Hakka Tulou round earth buildings, UNESCO World Heritage Site, Fujian Province, China, Asia

Hakka Tulou round earth buildings, UNESCO World Heritage Site, Fujian Province, China, Asia

North gate of The Forbidden City reflected in moat, Palace Museum, UNESCO World Heritage Site, Beijing, China, Asia

Medieval Malbork Castle, Marienburg Fortress of Mary, UNESCO World Heritage Site, Pomerania, Poland, Europe

Wawel Hill Castle and Cathedral, Vistula River, UNESCO World Heritage Site, Krakow, Malopolska, Poland, Europe

A couple in a giant love heart lock, Zhangjiajie Forest Park, Wulingyuan Scenic Area, UNESCO World Heritage Site, Hunan Province, China, Asia

Waterfall, Jiuzhaigou National Park, UNESCO World Heritage Site, Sichuan Province, China, Asia

Great Wall of China, UNESCO World Heritage Site, and the Yellow River in the Tengger desert at Shapotou near Zhongwei, Ningxia Province, China, Asia

Great Wall of China, UNESCO World Heritage Site, and the Yellow River in the Tengger desert at Shapotou near Zhongwei, Ningxia Province, China, Asia

Putuo Zongcheng Tibetan outer temple dating from 1767, Chengde city, UNESCO World Heritage Site, Hebei Province, China, Asia

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

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

Tancoyol Mission, UNESCO World Heritage Site, one of five Sierra Gorda missions designed by Franciscan Fray Junipero Serra, QuerŽtaro, Mexico, North America

Landa Mission, UNESCO World Heritage Site, one of five Sierra Gorda missions designed by Franciscan Fray Junipero Serra, QuerŽtaro, Mexico, North America

Parish of the Immaculate Conception, Catholic pilgrimage site, Real de Catorce, San Luis Potosi state, Mexico, North America

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

The church of the Holy Trinity bathed in evening light, Plaza Mayor, Trinidad, UNESCO World Heritage Site, Cuba, West Indies, Central America

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

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

Itsukushima Shrine Torii Gate, UNESCO World Heritage Site, Miyajima Island, Hiroshima prefecture, Japan, Asia

Waterfront pastel coloured houses, Porto Venere, Cinque Terre, UNESCO World Heritage Site, Liguria, Italy, Europe

Waterfront pastel coloured houses, harbour at Porto Venere, Cinque Terre, UNESCO World Heritage Site, Liguria, Italy, Europe

Carolingian and Romanesque frescoes, Church of the Benedictine Kloster St. Johann (Benedictine Convent of St. John), UNESCO World Heritage Site, Mustair, Graubunden, Switzerland, Europe

Landwasser Viaduct, Bernina Express railway line, UNESCO World Heritage Site, Graubunden, Swiss Alps, Switzerland, Europe