One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

This black church sits alone among a field of lava rock.

A trio of hidden hot tubs takes advantage of Iceland's natural geothermal vents.

This wrecked airplane has been sitting on a black sand beach since the 1970s.

The oldest (maybe) swimming pool in Iceland is a stunning oasis built into the side of a lush hill.

This modern monument to pagan belief looks like it was transported straight from ancient times.

Medicinal spa created with the discharge from a geothermal energy plant.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

With a floor made of thick glass, this observation deck offers a full view of Sunwapta Valley's mountains and rivers.

This lab's maddening silence is good for business but bad for sanity.