Arguing within this idyllic, circular volcanic lake is forbidden.

This "floating island" plateau sits 7,671 feet above the forest floor.

The enormous appendage offers spectacular views of Colombia's Huila Department.

An ancient city hidden in the heart of the Sierra Nevada mountains.

An explosion of natural color known as "the river that ran away from paradise."

The cross-shaped memorial is filled with kitschy tributes to the late pop star.

Space-age monument to an early 20th-century uprising.

This ancient theater, restored in the 20th century, lives on as a venue for dramatic and musical performances.

A 11-foot former president stands on a Kosovo street that also bears his name.

Thousands of objects tell the story of a city famous for its tobacco.

This 3,800-year-old site contains markers used to study the movement of the sun and moon and create a lunar calendar.