Possibly the oldest church in Barcelona, this basilica has its pagan and Christian mythologies all mixed up.

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

This Funeral Hearse Museum represents the finest in cadaver transportation.

One of Europe's largest supercomputers is housed inside of a disused chapel.

The studio of Catalonia's most famous theatrical designer remains exactly as he left it.

A temple to modernity, tucked away amid Barcelona's more well known museums.

This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

This UFO landing strip was created by a charitable Wyoming city that was worried about residents of Jupiter.

One man has installed bathtubs into the Utah desert floor to harness the powers of a natural hot spring.

A sculpture for the sun and stars, created by Nancy Holt.

Come for the speed, leave in love with the desert.

This was once the home of Gahan's Saloon, Denver's most storied speakeasy.

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

The spot where the namesake of the Douglas fir met his mysterious end on a Hawaiian volcano.

A model of a galactic embassy is hidden in plain sight along the highway, proposed by a UFO religion to find the aliens that created life on Earth.

More than 2,000 species of tropical plants call this nature preserve and sanctuary home.

Hide from the tourist hordes in these relatively unknown, and unguarded lava caves.

This unusual lava tube spouts seawater during high surf.

A true treehouse near Hawai'i Volcanoes National Park.

Watch the newest land on the planet form before your eyes.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

In the heart of Brigham Young's promised land sits a festering plot of industrial ruin that has been claimed by society's outcasts.

This roadside stop between Goblin Valley is the perfect location to view some of the region's natural wonders.

Kay Andrews's recipe was so good, her family immortalized it in stone.