Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

This landmark cemetery in Boston was created more than 300 years ago.

A centuries-old church stands as a testament to Boston's "father of architecture."

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

Neo-cave art on the macro scale.

Once a favorite playground for the world's most illustrious guests, Hotel Nacional's secret weapons and bunkers reveal a more menacing side to its golden history.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

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

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.

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

France's most famous cemetery, with some of its most curious tombs.

Paris' fabled purveyor of exotic taxidermy and natural history curios.

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

The video game-themed street art first popped up in the French city.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

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

Christ's blood allegedly preserved in a Belgian town.

The mirrored section takes the shape of Hebrew characters when viewed from above.

The fairy tale castle of the "fairy-tale king."

Daily jousts and dancing barrel makers in Munich's mechanical clock.