High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

Paris' linguistic guide to the international language of, yes, love.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

Notorious artist squat renovated into legal studios.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

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

The oldest stone house in Paris was built by its most famous alchemist.

Paranormal investigators claim this abandoned asylum is the most haunted spot in the eastern U.S.

The resting place of a Civil War celebrity's amputated limb.

America's post-nuclear-attack chambers of Congress.

Edgar Allan Poe's old dorm is now a shrine to the author's legacy.

The story behind the mysterious symbol painted in front of the historic university's famous Rotunda.

Bubbling up from deep underground is the warm crystal clear water that fills the Warm Springs Pools, America's oldest spa.

The flower-shaped temple in Virginia aims to transcend the boundaries of the world’s religions.

Hidden for 165 years inside a building designed by Thomas Jefferson are the remains of what may be America's first educational chemistry lab.

The freshest fish here are the ones you catch yourself.

This faux-seedy Japanese arcade is made up to look like a maze of alleys straight out of a cyberpunk dystopia.

A taste of the macabre Tokyo's ritzy shopping district.

Drinkslinger is an unlikely vocation for a Buddhist monk, but at this Tokyo bar the enlightenment is served in a martini glass.

Japanese company creates clone dolls that reside in the "uncanny valley."

Shrine to Japanese water-goblins, complete with their preserved body parts.

Seoul amusement park boasts a Korean-speaking pachyderm.

The 400-year-old remains of the samurai invasion of Korea.

A thriving artist's wonderland located just 6 kilometers from Korea's DMZ.