A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

A mysterious stone embedded at the base of a historic Boston building.

This historic patch of real estate offers a glimpse of colonial Boston.

Millions of numbers carved in glass represent the tattoos forced upon victims.

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

This enormous abandoned factory is now a makeshift graffiti gallery.

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

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

This ancient market is often referred to as the oldest shopping mall in the world.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

A statue representing a lost Roman profession that was vandalized for centuries.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

This statue is the only female representation of Rome's "talking statues."

A massive marble foot is tucked away in a small alley near the Pantheon.

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

The once abandoned ruins of a Victorian beachside amusement park are now back in working order.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

The ruins of an abandoned 18th-century town that is slowly being reclaimed by the forest.

An abandoned Depression-era zoo hidden just off the highway.

An iconic steel and chrome diner from the 1940s left empty for nearly 20 years is in danger of being demolished.

A miniature village lies nearly forgotten in the forest by the side of a major highway.