Pilgrimage site for star-crossed lovers.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

The oldest garden in Prague, once part of an medieval orchard.

These mysterious ancient stone spheres were created by a civilization lost to time and are now mostly lawn ornaments.

This small, ancient Roman temple was once a church dedicated to the patron saint of penitents.

This curious, round temple is the oldest still-standing marble building in Rome.

The "Greatest Sewer" of ancient Rome is one of the oldest sewer systems in the world, and is still in use.

Steadily reminding Czechia of its past.

This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

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

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

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

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

The first museum in the world devoted to sexual gadgetry.

Macabre astrological automaton clock dating to the late 1400s.

This large, circular tomb is the final resting place of the first emperor of Rome.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Elevated freight railway turned wildly successful urban park.

Despite violent work crews and massive delays this abandoned canal tunnel was built to last into the modern day.

A mysterious air force base built to resemble a Long Island fishing village.

Dubbed the "smallest church in America," this tiny sanctuary was a local grocer's dream come true.