Ride the subways of yesteryear.

An astounding collection of medical specimens, including bits of President Lincoln.

A haunted hill that supposedly defied gravity.

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

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

Once featuring over 60 miniature replicas of famous Chinese locations, the Splendid China theme park was completely abandoned and is now mostly rubble.

One of only two commuter aerial tramways in the United States.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.

A celebration of capitalism in Midtown.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

One part antique store, one part curiosities hodge-podge.

A museum dedicated to exhibiting remarkable outsider art.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

This little museum is built on a theater that was once a wildly elaborate speakeasy.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

A modernist landscape of water and sci-fi concrete.

The trials and tribulations of marking Poe's grave.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

The one-stop shop for all of your superhero (or evil arch-nemesis) needs.

A semi-scholarly approach to sex.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

A morbid secret lies hidden within the beautiful walls of the Boston Athenaeum.