Rome's most enduring icon is undoubtedly the Colosseum.
Built between A.D. 70 and 80 A.D., it was in use for some 500 years and held nearly 50,000 spectators.
Machu Picchu
Peru's Machu Picchu is thought to have been a sacred center for the nearby Incan capital of Cusco.
Machu Picchu
Machu Picchu, built at the peak of the Incan Empire in the mid-1400s, featured advanced tiered construction and stone architecture.
Chichen Itza
The genius and adaptability of Mayan culture can be seen in the ruins of Chichen Itza, on Mexico's Yucatan Peninsula.
Chichen Itza
The most familiar ruin at the Chichen Itza site is El Caracol, a sophisticated astronomical observatory, as shown here with the Pyramid of Kukulkan, or El Castillo (The Castle), in the background
El-Deir Monastery
Structures carved into stone and the El-Deir monastery helped Petra, Jordan earn its fame.
El-Deir Monastery
El-Deir, built during the first century, is the second most visited building in Petra.
Great Wall of China
The Great Wall of China is actually a succession of walls spanning approximately 4,000 miles.
Great Wall of China
The Great Wall of China is the world’s longest manmade structure.
Taj Mahal
Agra, India's Taj Mahal is a mausoleum commissioned for the wife of Mughal Emperor Shah Jahan.
Taj Mahal Gateway
The Gateway to the Taj Mahal rises nearly 100-feet high and separates the gardens from the forecourt.
Christ the Redeemer
The Christ the Redeemer statue has loomed over Rio de Janeiro, Brazil, from upon Corcovado mountain since 1931.
Christ the Redeemer
Brightly illuminated at night, the Christ the Redeemer statue on Corcovado is like a beacon over Rio de Janeiro.
