Berlin's old airport.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

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

First a horse rendering plant, then a 19th century landfill, this beach is full of glass from thousands upon thousands of broken bottles.

The haunting, dilapidated remains of a former poorhouse on Staten Island's Greenbelt.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Commemorating the spot where the famous scientist fed his pigeons.

There must be a pun in this haystack somewhere...

A very classy 1920s-era bar right in Grand Central Station.

Tucked away amidst some of the most famous addresses in the world is New York’s only fraction of a street.

A celebration of capitalism in Midtown.

Spinning silently in the lobby of an Art Deco masterwork is a massive vintage model of the Earth.