New York City's smallest piece of private property.

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

Read a book next to a Midtown waterfall.

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

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

This lower Manhattan bar is set up in an old bank vault that rests beneath a skyscraper that hides even more historic splendor.

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

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

A crumbling hospital from the 1850s on Roosevelt Island.

This professional clown's home is an outsider art wonderland.

France's Lilliputian park displays over 100 of the country's monuments for visitor perusal.

18th century underground pilgrimage site, dedicated to a Saint that did something...

Huge Russian Orthodox cemetery in danger of being converted into open public space.

Shattered columns and Egyptian pyramids outside of Paris.

One of the last realized projects of an influential, self-taught, French Modernist architect Jacques Couëlle.

The formerly unmarked grave of the noted Black American painter, who was a friend to James Baldwin.

A curious collection of locks and keys.

A charming flea market shop dedicated to retrofuturistic apparati.

An antique curios dealer and hybrid taxidermist.

Weird wax anatomical models reside here, as do other anatomical specimens.

Inside a former cabaret, seven floors of erotic art.

The largest medical and anatomical collection in France lies hidden from the public.

This mural painted by Keith Haring was done without payment as a gift to entertain the children at the Hôpital Necker.