One of New York's best collections of pinball is hidden in a secret bar in the back of this laundromat.

The first museum in the United States dedicated entirely to posters.

There’s a secret bunker inside the Brooklyn Bridge, but the city won’t say where.

A historic coal mine that doubles as a museum and tourist attraction.

The museum calls itself the "National Museum of the Paranormal" and is full of eerie oddities.

The "mysteries" of this quintessential roadside oddity were almost destroyed by neglect but were saved by fans of kitschy wonder.

A small storefront museum explores the history and myth of West Virginia's famous urban legend.

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

This abandoned amusement park was built on a site with a dark history.

A monument marks the location of the first successful steamboat demonstration.

Hundreds of mummies in a silent room, some with eerily pained expressions preserved on their faces.

A 32-acre fun park dedicated to all things cheese.

Swarms of dainty flying insects swarm into the Petaloudes Valley to get busy.

This anonymous businessman sculpted in bronze became an enduring memorial after 9/11, and had been mistaken by rescue workers for a survivor in the rubble.

This historic building housed the surviving crew members of the Titanic, who were left destitute after the wreck.

The artist and New York City icon lived, worked and died in this converted carriage house owned by another iconic artist, Andy Warhol.

A posh members-only club with a literally dramatic history.

A partially hidden wall graffitied by spectators of the 1976 Bicentennial, recently rediscovered.

The site of the deadly Triangle Shirtwaist Factory Fire.

Rummage through this sunken ship, but leave your scuba gear at home.

Hidden in one of New York's oldest subway stations is the final remnant of the site of the bizarre Shakespeare Riots.

This collection of grinning ephemera has grown from basement to Brooklyn.

During the holidays, a vintage subway train whisks New Yorkers back in time.

A Manhattan courthouse hides a small but scathing memorial to Holocaust injustice.