An ancient capital city that dates back 3,000 years old and harbors many surprises.

World's largest collection of serial killer artwork and other macabre exhibits.

On the Oregon coast there is a natural hole that seems to be draining the sea.

An exquisite tunnel of cascading flowers.

Rippling sand dunes frozen in the Arizona rock.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

World's first "penitentiary," meant to be humane, drove men insane.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

A church of bones, decorated with 40,000 human skeletons.

A huge musical instrument played by the ocean.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

On Japan's Tashirojima Island, cats are king.

This massive library holds what was once the largest book collection in the world.

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

Inside a former cabaret, seven floors of erotic art.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the century.

Walk upon the mementos of the dead in this Parisian courtyard paved with medieval tombstones.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.