Lie in a hammock where George Washington stood.

A Manhattan courthouse hides a small but scathing memorial to Holocaust injustice.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

The final resting place of the great escape artist, where some still gather to wait for his escape from death.

Love, knishes, and best wishes from this legendary Lower East Side bakery.

Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.

Read between the lines of the subway map to find the hidden abandoned Civil War fort.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

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

A masterpiece of LGBT art has been restored in what may now be the most valuable restroom in America.

The "Seinfeld" diner.

A hands-on traveling collection of the innovative devices of yesteryear.

A New York garbage depot holds a secret collection of weird and wonderful refuse.

A terrific purveyor of natural history objects and curios.

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.

A fascinating insight into daily life in the Eastern Bloc.

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

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

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

A surreal museum of extraordinary industrial objects.

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

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

After mysteriously refusing to surrender at the end of World War II this sunken submarine was only salvaged in a search for Nazi gold.