The world's largest boar is a huge steel titan found at a French rest stop.

This historic island prison holds one of the dungeons from the Count of Monte Cristo even though it is a work of fiction.

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

This quirky museum has a collection of more than 15,000 bobblehead dolls.

A giant, Gilded Age mansion that once belonged to the beer baron of Milwaukee.

A unique botanical garden housed in three giant geodesic domes.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

The oldest continuously occupied public building in the United States.

This giant pocket watch is the third iteration of a local landmark that has been standing just off the Santa Fe Plaza for over 100 years.

A natural formation that resembles a camel resting in the New Mexico desert.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

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

A museum devoted entirely to the rattlesnakes and snake-related art.

Thousands of pieces of art have been carved into the rock at the site of an ancient volcanic eruption.

Ornate "Renaissance Revival" style building.

Church featuring "high Victorian gothic" architecture.

This diesel train serviced the Brooklyn waterfront for more than three decades.

This theater opened in 1998, but both the building and the puppeteers who perform there have a distinguished history.

Long the exclusive domain of birds and vagabonds, this little-known Central Park peninsula is open to the public once more.

Once considered the height of medical modernity, this structure is now the oldest remaining component of Roosevelt Hospital.

The oldest surviving synagogue in New York City is now a soaring art space.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.