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

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

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

Street artists transformed an abandoned air vent into the beloved Star Wars robot.

A 400-year-old mummified arm dangles from the ceiling of St. James the Greater, serving as a warning to thieves.

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

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

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

The risqué mixed-media sculptures are supposedly a metaphor for Czech politics.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Macabre astrological automaton clock dating to the late 1400s.

A Jenga-style cylindrical tower of books that appears to go on forever.

Two stunning 17th-century libraries and a cabinet of curiosities.

Built by a king and rebuilt by an emperor, this aqueduct transported water for 1,200 years to this ancient Mediterranean hub.

After over 100 years out of service this landmark windmill once again turns as a symbol of Jerusalem's self-sufficiency.

The only quarter of the Old City not dedicated to a major world religion.

An ancient underground cultic temple where sunlight penetrates on the summer solstice.

A massive, heart-shaped, wind-carved crater in the middle of the Israeli desert.

The tallest waterfall in the Judean Desert is named for its connection to a biblical figure.

A magical oasis in the middle of the Negev Desert.

Squeezing inside this deep, narrow canyon reveals a festival of desert colors.

A "miracle" that seems to produce more holy fistfights than holy revelations.

This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.