This monolithic slab of art metal crowns a German slag heap.

The Bauhaus-style former industrial complex is considered the world's most beautiful coal mine.

The monumental home of Prussia’s eccentric "Cannon King."

This former steel and coal plant is now a neon-lit industrial fantasia.

The first recognized Neanderthal remains were found in this now-lost cave in 1856.

An abandoned underground bathroom is now a space for public art.

This bakery and museum offers tours of the tastes and mythology of Aachen's signature spice biscuit—just don't ask for the recipe.

The sweet story of how American cargo planes became known as "Candy Bombers" during the Berlin Blockade.

Though it may look like it’s missing its outer shell, this skeletal cast-iron tower was built to withstand wind and waves.

One of the last of the great 1920s movie palaces is a Floridian Greco-Spanish-Persian dreamscape.

Step back into the glory days of Florida's nascent tourism industry at this Gilded Age palace.

Manatees congregate around a power plant's discharge canal where the water is especially warm.

From printing money to live music, this Beaux-Arts style building has had many identities over the last century.

A luxuriant botanical garden below sea level.

History is hiding at the Morean Center for Clay.

Visitors flock to see this church tower's unintended feature: It happens to resemble a giant chicken from multiple points of view.

This former factory has been transformed into a technicolor wonderland, where dozens of local artists have collaborated to create a real choose-your-own-adventure experience.

The site of a gold-digging conquistador's bloody landing in the Americas.

12,000 sq. ft. museum tracing erotic art from antiquity to modern times.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

This beautiful Miami garden was designed as a laboratory for tropical plants.

This salad has two key ingredients: hearts of palm and green ice cream.

This grand Spanish-Cuban restaurant has been serving customers for more than a century.

Where serial killer Aileen Wuornos drank her last beer.