It took 275 years and four burials to finally put the Mayflower’s most famous passenger to rest.

A pair of 7-foot legs belonging to the military man of the Mayflower stand jauntily by the side of the road.

An accidentally hidden library containing the ephemeral history of New York.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

One of only two commuter aerial tramways in the United States.

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

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

Elevated freight railway turned wildly successful urban park.

A crumbling hospital from the 1850s on Roosevelt Island.

The prototype for all Nazi concentration camps.

A small square plaque marks a failed assassination attempt that could have changed history.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

Venice's island of the dead.

An extensive collection of reliquaries containing the bones of saints housed in the largest Catholic church in Venice.

Go inside to really appreciate this 500-year-old technological masterpiece.

The only museum with its curator—and her pets—buried inside.

100 year tradition of fist fights, marked by marble footsteps.

A restaurant and observation deck built in a unique broadcasting antenna.

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

A fascinating insight into daily life in the Eastern Bloc.

A tree-like building perches on its trunk in the Steglitz neighborhood of Berlin.

The studio built by fascists in the hopes of "reviving the film industry" with the occasional propaganda film opportunity thrown in.

Rome's ancient Etruscan rival, now a park full of ruins.