The only medieval bridge in Britain with its defensive tower still in tact.

This lucky bronze frog was gifted to Madrid by a casino.

This antique shop and tea room reside inside a twice defunct church that was moved stone by stone to its current location.

These secluded and abandoned anti-aircraft defenses have become one the most scenic viewpoints in Barcelona.

This unassuming chapel in Portugal plays host to a ghoulish collection of bones.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

The personal library of the founder of modern neurology is open to visitors.

Beggars were miraculously "cured" of their fake ailments when they returned home to this 17th century Paris slum each night.

Behind the pink curtain, Au Bonheur du Jour, an art gallery of erotic archives.

A band of aerialists and circus performers putting on incredible shows in East Williamsburg.

Tucked in a nondescript downtown Brooklyn mall is a bar containing a remarkable turn of the century anatomical wax collection last seen in 1920s Berlin.

Sniff the Titan Arum's rotting flesh.

A masterpiece of LGBT art has been restored in what may now be the most valuable restroom in America.

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

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

A DIY art gallery/music venue/lecture hall dedicated to video game culture.

A hip bar decorated with walls of golden skulls.

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

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

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

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

A terrific purveyor of natural history objects and curios.

This Manchester laundromat is hiding something.

An early Portuguese serial killer's head is alarmingly well preserved in a jar at the University of Lisbon.