Hidden behind a wall, Spanish nuns distribute their signature sweets on a revolving tray.

The fountain marks the area where hundreds of accused witches were burned at the stake.

This theatre was made famous after Lee Harvey Oswald was captured inside watching a film.

A city park that sits on top of a freeway.

A trio of colossal statues spread across a Dallas neighborhood chart the emergence of a giant robot born of a locomotive and spilled gin.

This downtown Dallas art installation is always on the lookout.

A symbol of Texas pride.

This strategically-placed fountain creates the magnificent illusion of mustangs galloping across a river.

A surreal landscape where fanged rocks rise from the ground and the ocean feels like a great mystery.

Shoreline strewn with the remains of ghostly fallen trees.

This open-air mosaic gallery honoring an English artist took hundreds of volunteers more than seven years to create.

A series of carved figures that scandalized British society.

A labyrinth hides in plain sight at each of the city's 270 Tube stations.

This sculpture encompasses the emotion of rail travel.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

The private clubhouse for the members of the Academy of Magical Arts.

The Hollywood home of Kermit the Frog and Yoda used to be Charlie Chaplin's film studio.

A Texas landowner spelled out his name with three miles of trees, a giant signature that's been used by NASA to evaluate satellite imagery.

The only airport with a people mover system designed by Walt Disney Imagineering.

The largest underground pedestrian tunnel system in the U.S. mostly caters to the people working in the offices above, but provides a great, air-conditioned way to traverse the city.

A statue of the original Pearly King is hidden in a church's crypt.

The London statue that imitates passersby.

A collection of machines designed to break things for science.

Graffiti from the 16th and 17th centuries cover the walls of this part of the Tower of London.