A naturally mummified 2,000-year-old man.

A network of concealed passageways lies within a busy London Underground station.

This hidden green space is the city's second largest conservatory.

London's smallest police station is barely the size of a phone booth.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

When German-Iraqi relations broke down, this embassy was vacated post haste.

Berlin's old airport.

Super-heavy Nazi architectural experiment.

A 12th-century fortress containing some of Berlin's oldest buildings.

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

Art and a pun, all in one.