One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

Nine bronze hands protruding from a wall honor the student uprising that led to the fall of Czechoslovakia's Communist government.

This Czech church doubles as something of a permanent fashion exhibition for a statue of the Infant Jesus.

A controversial artwork draws attention to the dark history of Prague's "Suicide Bridge."

Buried five stories underground, this Soviet bunker is packed with gas masks and Cold War paraphernalia.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

The tunnel's elegant proportions keep you snug with no claustrophobia freak-out.

A remarkable cabinet of curiosities in an art space in the center of Berlin.

An old department store turned Nazi prison turned artist commune.

You've probably seen these distinctive orange-tiled columns on the big screen.

Dedicated to the European Sinti and Roma peoples murdered during the Holocaust.

The site where a plot to assassinate Hitler was planned—and its conspirators were executed—is now a powerful memorial to the German resistance during World War II.

Art installations, derelict railcars, and endangered grasshoppers all call this south Berlin park home.

This platform is now a memorial dedicated to those who were deported during the Holocaust.

Once a path for Jewish funeral processions, this unassuming alleyway is rich in local lore.

Taste freshly foraged yarrow and black locust blossoms at this ambitious cocktail bar.

This monumental work of art symbolizes the coming together of a previously divided city.

A memorial in the Tiergarten is a reminder of the suffering inflicted on homosexuals by the Nazi regime.

This concrete residential area doubles as an open-air gallery.

This obscene artwork on the side of a newspaper office pokes fun at a rival paper's former editor-in-chief.

The last remnants of a massive medieval wall that once encompassed the city of Berlin.

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

Known simply as "The Hand," this famous public sculpture in Berlin was featured in a Depeche Mode music video.

A monument to the man who almost killed Hitler.