The man who introduced reinforced concrete to the world demonstrated its genius by using it to build his own house.

This Parisian café sticks almost exclusively to an ethos of reuse.

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

Got apples?

Stroll through retro Paris while shopping for old postcards and discarded doll heads.

The largest burial mound in the United States holds the remains of prehistoric West Virginians.

Berkeley Hot Springs presents to you "the only outdoor monument to presidential bathing."

Despite its lavish ornamentation, and wholesome lifestyle of its devotees, this mountain commune has faced its share of issues.

These mammoth-yet-narrow crevasses in the Earth are perfect for taking an otherworldly swim.

White llama terraces dazzle in Peru's "other Machu Picchu."

The depictions of slaughter are surprisingly detailed at this mysterious ancient site.

A remarkable geological formation resembling a forest made of stone.

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

Pre-Incan aqueduct amidst a stone forest in Peru.

Extraordinary rock formations in open Peruvian fields.