Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

Originally meant to hold a statue of King William IV, this support sat empty for years. Today, it hosts a rotating cast of public artwork.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

London's smallest police station is barely the size of a phone booth.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

The rotting skeleton of a shoreside fun fair that was destroyed by fire and storms still haunts the Brighton ocean view.

A vintage penny arcade hidden in the back of a fun fair-themed bar.

This tiny alleyway is now a shrine to a subculture riot between the mods and rockers.

Decrepit Victorian public lift is a white-knuckle ride.

A stunning bridge that appears as if it's lunging to the shore, and has a legend of a devilish architect.

The only substantial part of Nazi Germany's formidable defensive line through Northern Italy that survives today, largely intact.

This bustling Italian plaza is built on the ruins of an ancient Roman amphitheater.

Fortified medieval tower house with lovely roof garden.

This one-time health resort was used by aristocrats around the world.

Dedicated to a synagogue that was destroyed after having survived World War II.

A sculpture of the beloved author surrounded by characters from his fairy tales.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

A church of bones, decorated with 40,000 human skeletons.

"Medieval" castle built in the mid-20th century by one family.