This bridge made famous in a novel and on-screen wasn't actually built over the river Kwai.

A limestone wonderland of water and subterranean secrets.

This museum has a most unusual location: inside a giant, three-headed elephant.

A modern temple with an ancient philosophy.

An on-site urban farm and fish pond supply some of the produce for this upscale restaurant.

This ambiguous pig shrine is actually a monument to a beloved queen.

Time-frozen department store of dangerous and dusty relics.

This collection of reclaimed landmines acts as both an exhibition of their deadly history and as a shelter for children affected by them.

This Cambodian riverbed is covered in ancient Hindu carvings both above and below the waters.

A battle between nature and architecture in the Cambodian jungle.

The headquarters of the Mahanikai school of Buddhism, Thailand's largest monastic order.

A treasure trove of pathological, forensic, parasitological, and anatomical specimens.

A shrine built to combat the bad karma of a commercial venture.

The walls and streets of the ancient city are peppered with penises.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

One of the few working locomotive roundhouses in the United States.

One man's attempt to create an artistic wonder on a run-down block in Detroit.

Detroit housing collective working to create an "environment for revolutionary change."

The world’s largest Masonic temple was saved by the White Stripes.

These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

The 80-foot tire that looms over Michigan's I-94 was once a Ferris wheel in the New York World Fair.