This empty Detroit high school was too expensive to maintain or destroy.

Hamissi Mamba and Nadia Nijimbere opened this community-minded restaurant serving dishes from their native Burundi.

Internationally recognized group that works to protect the wolf and educate the public about its plight.

A high school astronomy enthusiast designed this model of our solar system to be traversed on foot.

Colorful boxes placed over the dead are left to rot and crumble.

An open-air "garden" of mural art that changes weekly.

Barcelona's only remaining tram system takes riders to the Tibidabo funicular.

A cemetery in Barcelona's Poblenou district is home to this touching funerary statue, which depicts death in the form of a winged skeleton.

A former steam-powered mill from the 1800s is now an industrial park with a giant steel dragon slide.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

Over 1.3 million confiscated wildlife products fill this macabre menagerie of illegal animal specimens.

The oldest operating cemetery in Denver is the eternal home of some of the Centennial State's most famous residents.

Unlike most arches, this geological oddity formed in a volcanic dike.

Possibly the world's only drive-in movie theater with an attached motel.

Climb to the top of this spiritual tower, and you'll be rewarded with spectacular views.

A mental health hospital dating back more than 139 years, now features a museum.

This interpretive path lets you get up close and personal with dinosaur bones.

An architect in Aspen used psychedelics as his muse while building this mushroom masterpiece.

Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.