By day this New Orleans square is for pedestrians, but by night it is a kingdom of kittens.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

A tilted half-timbered house from 1672 is built into a salvaged segment of a medieval wall.

The small alleys in Lübeck's Old Town are a result of medieval urban sprawl.

A statue honors the local legend that the devil helped build St. Mary's church after being tricked into thinking it was going to be a wine bar.

A stunning two-story timepiece within a medieval Brick Gothic church.

Carvings in Turkey's Marble Road may have directed ancient Romans to a hidden brothel.

The ancient latrines of the Greeks, in all their public glory.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

This otherwise unremarkable ski town building marks the site of Butch Cassidy's first robbery.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

One woman's UFO-themed campground, complete with self-built energy vortexes, UFO-themed weddings, and magic bushes.

When ecosystems collide in the arid Southwest.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

This network of narrow, medieval passages has the most delightful name.

Follow the original medieval paths that wind through this intriguing section of the city.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.