This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

This facility has manufactured stunning tapestries for France's royalty ever since the 17th century.

Former hunting lodge of a duke who was an avid collector of impressionist works.

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

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

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

The site of the climactic scene from the classic horror film is now a historic landmark.

Collection of fossils, plants, and ancient animals encased in amber.

The highest peak in the state of Vermont has some interesting features.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

The oldest operating pharmacy in the world features 800-year-old recipes.

Two stone columns flank the grand Venice square, but there were supposed to be three.

Go inside to really appreciate this 500-year-old technological masterpiece.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

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

Disney World's very first waterpark is now an abandoned ruin being reclaimed by the swamp.

Disney's abandoned animal island is now an overgrown ruin that was almost the coolest attraction ever.

Former WWI oil tanker played a variety of roles in history, its tantalizing rum-flavored scent being the only constant.

Roam the cradle of the Cuban Revolution with life-sized dinosaurs.

This private residence was the template for one of the most beloved television homes of all time.