The patron of this extravagant Art Nouveau confection insisted that nothing less than a boat should project from its facade.

Each time a baby is born in Ghent, these streetlights flash in silent celebration.

The "stairway to heaven" lookout tower was built to resist weather, arson, and the laws of physics.

This modern arts center is built around a gem of late-Baroque architecture.

A rare example of World War I trenches from the British front.

One of the deepest indoor swimming pools in the world.

Mysterious Incan ruins on a tiny island in Lake Titicaca.

A monument to the conquistador became increasingly controversial in the very city that he founded.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

An Inca spa, military outpost or maybe… both?

Thousands of volcanic rocks carved 1,000 years ago.

The elaborate crypt where Peruvian heroes of the War of the Pacific were laid to rest.

The large collection of pre-Columbian pottery might make you blush.

Now containing the bones of the actual conquistador, instead of someone else.

The remains of what was the most important religious complex in coastal Peru for over a millennium.

Lima’s Museum of Anthropology is lined with thousands of elongated human craniums.

Nazca pilgrimage site covering 370 acres is a popular stop for archeologists and looters.

Huge stone depressions which may have acted as an Incan agricultural experiment.

Sleep in a glass pod dangling off a cliff.

Keshwa chaca, among the last handwoven Incan bridges, crosses Apurimac Canyon in Peru.

Once the home of a hermetic monk, this cave now houses a small church.

This easily overlooked memorial immortalizes the scars from the 1956 Hungarian Revolution.

The geographical center of Budapest is marked with a 10-foot-tall stylized zero.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.