The end of the 4 Line is also the end of the line for 300,000 souls in one of NYC's most illustrious cemeteries.

Ride the subways of yesteryear.

A New York garbage depot holds a secret collection of weird and wonderful refuse.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

You've probably seen these distinctive orange-tiled columns on the big screen.

Radical Bookstore and Community Space.

Taste freshly foraged yarrow and black locust blossoms at this ambitious cocktail bar.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

At one of Berlin’s oldest churches, visitors can place mosaic tiles to help restore a medieval mural.

The final resting place of many of Germany's most famous communists.

Inside the corridors of this flea market, visitors are sure to find some obscure and odd treasures.

Berliners converted a bombed-out, disused lot into a community-run urban farm with its own cafe and bar.

France's most famous cemetery, with some of its most curious tombs.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A crumbling hospital from the 1850s on Roosevelt Island.

An extraordinary collection of vampire-themed antiques lurks on the second floor of a store.

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

This disastrous New Jersey safari park saw animal attacks, escapes, and disease before being abandoned.

Stone memorial that's said to predict the death of the pope and the site of the Cadaver Synod.

The studio built by fascists in the hopes of "reviving the film industry" with the occasional propaganda film opportunity thrown in.

This unique Renaissance castle was turned into a home for Nazi occultism.

America's greatest forgotten garden and the former stomping grounds of Son of Sam.

The yawning maw of this pagan visage is said to bite off the hands of liars.