Water and windows define this defensive Italian well.

On rare days, this abandoned castle's gatekeepers open its doors, revealing the eye-popping splendor hidden inside.

The scene of the United Kingdom's most famous UFO incident, dubbed the "British Roswell."

The middle finger of modernity.

Where's a guy to go after a long, hard day at work?

You will not be able to miss this building.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

As can be expected from a centuries old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

The biggest and deepest Cold War bunker open to the public can be found in southeast England.