Synagogue built from the stones of Solomon's temple contains the golem of Prague.

An Orwellian sculpture with eyeball cameras watches passersby.

A saintly relic hidden in a Prague church basement.

This doorless 20th-century elevator doesn't stop or slow down.

This automated sculpture of two men peeing will spell out text messages with their micturition.

This artificial cave looks like something out of a fairytale.

A mocking tribute to the past and modern leadership of Prague.

An old asylum graveyard that's been abandoned for half a century attracts those seeking a dark thrill.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

A collection of anatomical samples from one of the first anthropologists to suggest that humans reached North America by crossing the Bering Strait.

Walk through Czech history in Prague's largest graveyard.

This quiet, unassuming spot in Budapest was the birthplace of the bloody 1956 Hungarian Revolution.

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.

A random tree outside a Budapest hotel has become a DIY shrine to the late singer.

Legions of Roman soldiers bathed in this ancient spa complex under a Budapest transit station.

A forgotten graveyard lost in the tangles of an overgrown garden.

This statue of a falling man commemorates a teenage martyr of the Hungarian Revolution.

Late at night, the bust of the "Dracula" actor was snuck onto the facade of this Budapest castle.

A fake Transylvanian castle houses a cathedral of antlers.

This hidden art nouveau gem was designed by an architect in search of a national style.

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.