It is said the legendary wizard once lived in this sea cave beneath Tintagel Castle.

A fantastic castle rumored to be the birthplace of King Arthur.

Sometimes an island, sometimes a rocky outcropping connected to the world by a tiny suspension bridge.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

An enormous and lavish Gothic church in Czechia.

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

A mocking tribute to the past and modern leadership of Prague.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Two stunning 17th-century libraries and a cabinet of curiosities.

Macabre astrological automaton clock dating to the late 1400s.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Inside this Icelandic greenhouse, geothermal energy keeps tomatoes warm and growing.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

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

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

A small park on Bourbon Street features life-size bronze statues of New Orleans musicians.

A little piece of Paris in the sultry south of the U.S.

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

The restaurant keeps a hidden séance room on the second floor and reserves a table for the spirit of the former owner each night.

In 2010, Nicolas Cage purchased two plots in this cemetery using one to construct this strange pyramid mausoleum.

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.

A museum and shop on Bourbon Street located in the French Quarter.