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

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

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

One of the most photographed locations in the entire city.

A Victorian Gothic masterpiece housing a world-class collection of rare books and manuscripts.

On top of a hill, this Catholic church overlooks the most Catholic island in Greece.

The monster at the center of the Darwin Center Spirit Collection.

This marine reptile was discovered by one of the 19th century's greatest fossil hunters.

Catacombs turned marketplace.

Repository for more than 22 million pickled specimens.

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

This intricately carved and hilariously huge bed was such a famous symbol both Shakespeare and Byron used it in their writing.

A large replica of a monumental Roman inscription is located on the side of this museum.

This large, circular tomb is the final resting place of the first emperor of Rome.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

This basilica is dedicated to two saints, one of which is known more for his famous quote.

The remains of this 2nd-century Roman temple are incorporated into a modern building.

Rome's first modern graffito is all that is left of a peaceful protest from the 1970s.

A treasure trove of Renaissance-era funerary art in a Roman church built on top of Nero's grave.

Romans decided this 16th-century "talking statue" was so ugly, they named it after a primate.

The 20th-century chapel’s intricate woodwork includes amazing details, most notably angels playing bagpipes.

This alley off Edinburgh's Royal Mile contains remnants of the city's seedier history.