Locals affectionately dubbed this World War I memorial "Tommy."

A million and a half tons of earth were used to create one of the world's largest land sculptures.

A collection of maritime artifacts from the world's first volunteer life brigade.

A slightly surreal menagerie of structures that were lovingly spared from demolition and reconstructed in a field.

An ode to the classic piece of British street furniture.

The grave of the legendary "Bonzo" can often be seen covered in cymbals and drumsticks.

Built by the patron saint of illusionists this Elizabethan manor house is riddled with secret cubbies for hiding priests.

Giant, friendly pelicans in Central London, the most unlikely of places.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

This chimerical bridge/tunnel appears to dead end right into the sea.

Gods clash with machines in a power plant regenerated as a museum.

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

This gruesome biblical parade celebrates the one day a year that a bit of Jesus' blood turns to liquid.

This conical hill was built as a testing ground for an engineer known as the Glider King.

Floating swimming pool within a moored vessel.

An eerie, derelict amusement park in Berlin.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

This dreamy street will transport you to wintertime in Victorian England.

Old ships and machinery fill a historic harbor in the city that's home to Europe's largest port.

The final resting place of George Washington's Grandma.

Local legends say that fairies used to dance in the moonlight here and invite handsome young men into their grottoes.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

A labyrinthine network of chambers with a storied past hides below Edinburgh's South Bridge.