A monument to the three wars that led to German unification towers within a Berlin traffic circle.

This water-tower-turned-high-end-apartment building was once the site of an early Nazi concentration camp.

Cold war icon and onetime "hole" in the iron curtain.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

A fascinating insight into daily life in the Eastern Bloc.

The most visited, and possibly most controversial, museum in Germany.

If you look closely at the oldest bridge in Paris, you might notice hundreds of ugly faces leering from its sides.

This bridge was constructed from the rubble of the infamous Bastille.

Visit a surreal landscape so otherworldly NASA actually used it to train the Apollo 17 crew.

Partially collapsed lava tube and cave system complete with concert hall, underground pond, and unique albino crabs.

An impressive museum dedicated to the resource that made the Scandinavian country rich.

A former factory now pays tribute to a local industry fueled by sardines.

A favorite with sightseers, this Norwegian funicular provides easy access to a stunning view of Bergen and its environs.

An authentic, seaworthy replica of the ship that sailed to Newfoundland in 1497.

A 142-foot-tall Q-tip on Bristol's skyline.

A plaque claims this artwork outside a children's hospital was used in the 1998 Quidditch World Cup.

17th-century merchants in Bristol nailed their deals by placing money on these pedestals.

The unusual clock on this 18th-century market building has an extra minute hand for "Bristol time."

A historic, reportedly haunted pub that provided inspiration for several famous adventure novels.

Banksy's image of a naked man dangling from the window of a sex health clinic.

England's steepest street has such a drastic incline that locals tie their parked cars to lampposts when it gets icy.

A ferry has operated across the River Hamble for around 500 years, but its distinctive bubblegum pink is a more recent addition.

A half-mile-long stretch of medieval forts built after a devastating pirate attack persists amid the modern port city.

Discovered on a shipwreck after more than 400 years, this Renaissance ratter tells a very waggly tale.