Once the largest winery in the world, this castle-like building now sits abandoned on the San Pablo/San Francisco Bay shore.

A 10,000-square-foot museum of operating model trains.

Where a staggering 747 ships were constructed during World War II.

An "anarchical" no man's land, complete with garbage sculptures and a hobo-run "Landfillian Library."

A porcelain company's former dumping ground, completely covered in pieces of collectible ceramics.

An abandoned Cold War missile radar site.

An vast warehouse of everyday treasures in Berkeley, CA.

A massive ultra-modern church presents a science-fiction view of Catholicism's inclusive future.

After serving in World War II and picking up Apollo astronauts, this aircraft carrier has been turned into a museum overlooking the San Francisco Bay.

Spiral labyrinth hidden in the hills above Oakland, CA.

A bronze statue on a downtown corner honors Minneapolis's favorite career gal.

A wealth of seafaring history displayed on the California coast.

Italian horror legend Dario Argento’s own shop hides a sinister museum-dungeon in the basement.

Breathtaking and huge 430 year old maps of Italy.

The first statue to be added to Saint Peter's Square in over 350 years is an ode to migrants and refugees around the world.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

The remains of this 2nd-century Roman temple are incorporated into a modern building.

A sculpture serving as an homage to Pope John Paul II.

A monumental fountain in Rome features a large statue of Moses that has been criticized for centuries.

The walls and streets of the ancient city are peppered with penises.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Erotic art covers the walls of the largest ancient pleasure palace.

A store full of vintage and indie toys designed to bring out the kid in even the crustiest of adults.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.