Places Motorcat Wants to Go

One of Philadelphia's largest murals resides hidden under this bridge.

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

Suspended above the ground in a thicket of towering Georgia trees is a modern architectural wonder.

Secret gardens just a few miles from downtown Atlanta.

The largest cemetery in the American Southeast is a hidden gem near the heart of Atlanta.

A beautiful, dense forest in the shadow of Mount Fuji, with a tragic reputation.

A 20-meter (65-foot) robot towers over Tokyo Bay.

A taste of the macabre Tokyo's ritzy shopping district.

Thirty creepy ghosts now inhabit this decaying 14th-century church.

An abandoned NSA listening post on Berlin's "Devil's Mountain."

Abandoned Nazi train station turned underground astroparticle laboratory.

An abandoned concrete jungle surrounded by a lush park.

This abandoned prison castle has become an imposing gallery of graffiti art.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

An abandoned relic of the city's failed experiment with below ground transit.

A hidden alley in urban Baltimore is a haven for graffiti artists.

Atlanta's strange assortment of concrete pillars inspires reflection in some, confusion in others.

This derelict superstructure was a very important warning system for the Soviet military.

Once the most densely populated place in the world, this island is now a ghost town.

Not quite the menace it once was, this monster still has some chops.

Once a bastion of its community, this gothic cathedral now stands as a haunting ruin.