The oddly shaped, steam-spewing building is now an art studio and gallery.

These eerie outliers of the lightning bug family glow a mysterious blue color.

This set of rickety spaceships are prepared to give alien travelers a place to relax and go to the bathroom.

A cabin completely covered in coffee mugs, where visitors are welcome to leave one of their own—if they can find an empty nail.

A museum dedicated to the alleged Roswell Incident.

The subtle science of a master molecular gastronomist.

Location of the most powerful laser in the world, and the potential birthplace of tiny stars.

One of the world's largest telescopes, stares into the night sky with two huge mirrors.

A museum within a museum, devoted to history's most questionable medical devices.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

Tens of thousands of tiny bottles stuffed with various items.

In the most arid desert on the planet, the world's leading telescope allows astronomers to see more than has ever been seen before.

Eighteen miniature death-scene dioramas.

Inspiring Earthlings to Boldly Go.

In oil-rich Azerbaijan, people bathe in the black stuff.

First a horse rendering plant, then a 19th century landfill, this beach is full of glass from thousands upon thousands of broken bottles.

Leaf through over 30,000 artists' sketchbooks in what may be the world's largest collection of doodles

Nondescript elevator doors open to reveal a stunning, surreal world.

Ride the subways of yesteryear.

A Pythagorean funhouse that tries, successfully, to prove that math is the coolest thing ever.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

The tallest hotel in Europe.

Pick up all of the cosmic knick-knacks under the sun or take a creative writing course, all offered in this novelty storefront.

This remarkable collection devoted to the study of fish includes 1 million preserved specimens from all around the world.