An art deco ice cream shop covered in vintage train station tiles.

Stalactites and stalagmites in a beautifully lit cave.

Gnarled canopies of pink and purple wildflowers arch over the trail to the summit.

This legendary "evil" doll has been haunting the citizens of Key West for over 100 years.

Mother Nature outdoes herself with this stunningly beautiful set of caves carved into marble.

A natural gas leak provides a flickering flame beneath a waterfall.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

The museum calls itself the "National Museum of the Paranormal" and is full of eerie oddities.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

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

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

An abandoned railroad tunnel is now filled with bioluminescent bugs.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

The longest living non-clonal organisms on Earth.

This Irish show cave is said to have been the site of a Viking massacre that claimed 1,000 lives.

The subtle science of a master molecular gastronomist.

One of Canada's most incredible rare book collections holds hundreds of thousands of gorgeous tomes that the general public can touch.

Just your average Marie Antoinette–themed speakeasy in an abandoned 19th-century subway tunnel.

Sandstone rock formations that look like they belong on the cover of a progressive rock album.

Walk upon the mementos of the dead in this Parisian courtyard paved with medieval tombstones.

At the crypt of St. Mary of Eulogies and the Dead you are left alone to ponder mortality among piles of skulls.

A botanically themed auditorium blooms within the world’s last operating double-decker theater.

Visible below the waves are memorials to the city's Gold Rush dead.