This whimsically unique butterfly farm focuses solely on creating habitats for the gentle insects.

A unique work of art that was created without permission.

The second largest maple syrup producer in the U.S. runs a high-tech operation.

This mouldering abandoned mental hospital was once a center for progressive healing.

From mining complex to industrial exhibition, this museum once played a major part in the X-Files.

Partially collapsed lava tube and cave system complete with concert hall, underground pond, and unique albino crabs.

Park in the Canary Islands renowned for white dunes that contrast with the turquoise waters of the Atlantic.

Visit a surreal landscape so otherworldly NASA actually used it to train the Apollo 17 crew.

The chefs at El Diablo use heat generated by an active volcano to cook the food.

This kaleidoscopic house may be the most bizarre on the island of Fuerteventura.

This beautifully verdant lagoon is tucked below a massive volcano in a crater atop a black pebble beach.

A defensive structure built during the Hundred Years War has remained useful in one way or another for nearly 700 years.

This skewed English house has looked like it's going to fall over for centuries.

Erected in memory of Sir Arthur Conan Doyle, who was born close to this spot, this statue commemorates the author and his famous detective.

One of the first reinforced-concrete buildings built in the UK, now abandoned.

This mom-and-pop Japanese sweets shop has been serving cloud-light mochi for almost a century.

A relatively obscure antihero from the Marvel Comics universe adorns a wall inside Iceland's main airport.

A popular Icelandic children's story comes to life inside this cave.

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

An 80-year-old plane tree is devouring an iron bench at Ireland's oldest law school.

One of the deepest blue holes in the world.

The colorful, smiling concrete silos of Vancouver.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

This Art Deco masterpiece has stood in for some of the most famous buildings in comic book history.