This unique structure in suburban Austin is made up entirely of other people's castaways, and constantly changing.

A huge musical instrument played by the ocean.

During an annual Catholic feast in this tiny Spanish village, men dressed as devils leap over rows of babies to cleanse them of sin.

Secret Soviet city once home to Russian cosmonauts and space training facilities.

A swing to dangle you off the very edge.

In the remote high desert of New Mexico, a strange array of poles beckon fury from above.

A 20th-century picture show in 3-D.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

This giant statue is the product of a mixture of corruption, Stalinist architecture, and North Korean manpower.

An Austrian house of bones filled with hundreds of intricately painted skulls.

The middle finger of modernity.

Roadside collection of 65,000 signs.

First known as the "Sample House," this construction mash-up was meant to be a living catalogue of building styles.

Have fun at the world's first Buddhist waterslide park.

After the musical legend's death, his memorial was mysteriously graffitied in gold.

One of two giant blue cockerel statues erected with an intentional double meaning.

A butcher shop in Minneapolis has all the meats and cheeses you’d expect from any of its kind—except that all the products are vegan.

A toweringly silly piece of modern art has been delighting locals since the 1980s.

The world’s first museum dedicated to the history of childhood opened in Edinburgh in 1955.

A familiar otherworldly creature guards this 12th-century Scottish abbey.

A mysterious monument where a woman who records say never existed was burnt alive for being a witch.

At high tide this strange footbridge appears to have no purpose whatsoever.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

360° views of the city plus five floors of optical illusions and hands-on science.