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

The very center of Paris is surrounded by a bevy of strange good luck rituals.

Northern Ireland's Brobdingnagian stepping stones.

The first declared National Monument in the United States.

Rising from the sea like a stone monster.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

Macabre astrological automaton clock dating to the late 1400s.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

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

Staves, storm-calling, and of course, necropants.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

Cabaret where the show girls are all androids, and the patrons couldn't be more pleased.

The world's largest collection of witchcraft regalia.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

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

The rocks in this arid basin leave trails of movement behind them.

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

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

Try not to get slimed in Tribeca.

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

A one-of-a-kind collection of a unique medium.

A 16th-century horror show built in a lovely Italian garden.

Hot springs monkey spa in the middle of Hell's Valley.

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