Hidden beneath the streets of London is a secret subway that only carried mail.

Behemoth, cannon-like telescope operated by generations of Irish earls.

A remarkably intact castle that once was the largest in Ireland.

A tiny microvalley etched into the side of Knocknarea Mountain hides another world.

An ancient neolithic tomb that only sees the sun twice a year.

Obelisks and stone pineapples in the Irish countryside.

A corkscrew-shaped barn in Ireland.

This submersible road connecting a French island to the mainland is lined with safety towers for when the tide strands travelers.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

As the aging humans of this Japanese village die off one local artisan is replacing them with eerie homonculi.

A ghost town at the airport is now a refuge for blue butterflies.

A modern English garden of eccentric beasts, follies, and oddities.

Lovingly nick-named the "Brick Dick" this municipal tower was winner of the World's Most Phallic Building Contest.

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.