Bizarre lunar-like landscape with thousands of large stone "hoodoos."

Most-visited and most-photographed slot canyon in the American Southwest.

Despite its name, this route in southern Utah offers a heavenly day trip.

Giant pinnacles in the sun-scorched lands of Southern Utah have been nicknamed "white ghosts."

Dramatic river bend surrounds a natural red-rocked pedestal.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

This geothermal hot spring hides beneath a slowly growing mineral dome.

Home to the deepest rift anywhere on Earth.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

A convincing little bit of ancient Egypt smack dab in Richmond, Virginia.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

Heron, whitewater rapids, and urban industrialism all add to the beauty of this concrete nature walk.

An outsider art studio that created a piece of work so popular they had to turn mainstream.

Less a museum than a bizarre fantasy world created by artists and engineers.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

Once the local rulers had gone these enchanting ruins housed common folk in an almost real life fairy tale.

This noble mash-up in eastern Luxembourg is part Medieval, part Renaissance, all castle.

The birthplace of Karl Marx is now a museum dedicated to the communist revolutionary's life and work.

The last bastion of Roman presence north of the Alps looms over a German town.

Museum dedicated to literary greats of the Romantic Period is also the home in which Keats met his untimely end.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

This famous city eluded concrete detection until the early 2000's.

Roman ruins top white travertine terraces formed by ancient hot springs.