A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

This watchtower once presided over the Berlin Wall.

Giant WWII fortresses that fired 8,000 rounds a minute, now home to thousands of pigeons.

Super-heavy Nazi architectural experiment.

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

A haunting contrast of trains that both saved and took the lives of Jewish children in Nazi Germany.

Reminders of the Battle of Berlin still scar the railway.

The East Village tenement from the cover of Led Zeppelin’s 1975 album has a tea shop on the ground floor.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

Internet rumors, often involving Icelandic singer Bjork, have abounded regarding this isolated outcrop of rock.

An abandoned Cold War missile radar site.

A (slightly) grownup take on the classic retro arcade.

An iconic steel and chrome diner from the 1940s left empty for nearly 20 years is in danger of being demolished.

You can cross from one country to another in a single hop on this little bridge.

The original film set of Luke Skywalker's Tatooine home from the 'Star Wars' trilogy.

A French-Colonial era collection of taxidermy and wet specimens, secreted away in the National University of Hanoi.

The abandoned "Red Star Train Graveyard" is the final rusting place for precious artifacts of train history.

A favorite Paris bar for U.S. expats, including Gershwin, Hemingway, and James Bond.

A little stop along the Texas highway where Rock Hudson, Elizabeth Taylor, and James Dean stayed while shooting the 1955 film "Giant."

With print dying, this local paper keeps the lights on by doubling as a stunning cafe and cocktail bar.

A Wisconsin kitsch palace from the 1930s lives its second life in 21st-century Brooklyn.

An ancient instrument used to measure the waters of the Nile so Egyptian farmers would know whether to expect famine or flood.

Three vintage horses survived a 1976 inferno and found a home on a sister carousel.

Though the original building has been demolished, these massive bronze doors were saved.