A seven-century-old jail tells a not-so-pleasant history of crime and punishment.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

Ruins of a German Castle on top of a towering stone pillar.

An exquisite panometer representing Dresden as it was from 1695 to 1760.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

Explore the quarry where the marble was sourced for Michaelangelo's David.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

The bears of Bern have been a city highlight for over 500 years.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

A small but immensely extravagant palace built by the "Night King."

The Bauhaus-style former industrial complex is considered the world's most beautiful coal mine.

An industrial relic is now one of Europe's most staggering art spaces.

This former steel and coal plant is now a neon-lit industrial fantasia.

This Armenian monastery was carved out of cliffs and named after the spear used to stab Jesus.

The most visited pilgrimage site in Armenia once held a saint in a pit for 13 years.

A geological oddity topped with a 2,000-year-old pagan temple.

The first tunnel to be dug beneath a river, repurposed as an art and museum space.

Pop culture has helped to keep this iconic British building from being destroyed.

Banksy gives themself artistic license with this piece of London street art.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The embalmed remains of the communist leader lie within a custom crystal coffin.

This smaller cousin of the Forbidden City has gone from ancestral sacrifice to tourist's whispers.

This probably wasn't what Mao had in mind.