Tiny memorials honor individual victims of the Holocaust.

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.

One of downtown Berlin's last reminders of its Communist past.

Blitzkrieg bop your way through Berlin's Ramones Museum.

What started as a tongue-in-cheek shrine is now a full-blown museum celebrating "The Hoff" and his longtime love affair with Berlin.

Someone loved this song enough to carve all of its lyrics onto a tree trunk in a Berlin park.

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

A wunderkammer of mysterious objects and stories.

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

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

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

The ruins of the largest gladiatorial school in Rome are largely hidden under modern streets.

This subterranean shrine beneath a bike rental store celebrates the iconic Italian scooter.

Jesus' footprints and the first catacombs in the world.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

At the crypt of St. Mary of Eulogies and the Dead you are left alone to ponder mortality among piles of skulls.

This is the largest cemetery in Ireland and the first cemetery museum in the world.

The mummified heart of a saint lives on in this church—after a brief hiatus when it was stolen.

A museum that cashes in on its infamous little people while teaching you a thing or two about the Irish fey.

An Irish church where an 800-year-old mummy is reaching out of his coffin as if to shake hands.

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

This allegedly haunted 16th-century tower house-turned-museum exhibits thousands of spectacular objects.

The fountain marks the area where hundreds of accused witches were burned at the stake.