Haven for steampunks.

19th century cemetery hidden in Brooklyn's Prospect Park.

A modern zoetrope on the New York City subway.

First a horse rendering plant, then a 19th century landfill, this beach is full of glass from thousands upon thousands of broken bottles.

Ride the subways of yesteryear.

Constructed in the 1920s, this former pencil factory is now an office building.

“Invented in Key West, Perfected in Brooklyn."

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.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

The oldest landmark of Toronto is a testament to shifting sands.

Secret Swing.

One of the largest underground systems runs under Canada's largest urban center.

This massive, ancient stone was disassembled and then put back together again.

A collection of more than 12,000 shoes, displayed in a building shaped like a shoebox.