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

Dedicated to the European Sinti and Roma peoples murdered during the Holocaust.

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

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

One of downtown Berlin's last reminders of its Communist past.

A fascinating insight into daily life in the Eastern Bloc.

A swimming hole in the historic industrial quarry that supplied the marble for the Baltimore Washington Monument.

This abandoned sea fort has become an accidental bird sanctuary.

Ship skeletons haunt Baltimore's waterways.

A winding district gerrymandered into the shape of a mantis.

This lovely tree was a thank you gift from the man known as "Public Enemy No.1."

An abandoned church gets a second life as a massive beer hall and event space.

Oldest building in California still in use.

The oldest platform carousel built in the United States continues to delight children in Martha’s Vineyard.

This candy-colored storybook village originated as a 19th-century Methodist campground.

The filming location of a shark attack in Steven Spielberg's famous shark movie.

Colorful clay cliffs tower over an unofficial nudist beach on Martha's Vineyard.

Hidden inside this Arizona fast food franchise is an in-depth exhibit on the famed WWII counterintelligence program.

The graffiti-covered ruins of an abandoned trading post in the middle of Navajo Nation.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

Once a dining hall for boarding school students, this lodge was a popular haunt for nuclear physicists working on the Manhattan Project.

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

These aggressively sustainable art homes look like something out of 1970's science fiction.

A sprawling collection of over 106,000 toys from around the world.