A giant 400-acre preserve in North Florida for displaced wolves.

A haunted hill that supposedly defied gravity.

An underwater city for the dead.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

The world is full of swimming holes, but few compare to Samoa’s idyllic To Sua ocean trench.

An explosion of natural color known as "the river that ran away from paradise."

This beautiful natural train tunnel is said to grant the wishes of visiting lovebirds.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

An architectural marvel that spans the Arda River, and has stories of a haunted past.

This stunning mass of ice spans 121 square miles and is still growing.

These layered sandstone mountains in China look like they are made of pressed crayons.

270 million year-old forest of stone.

An alien landscape of chalk-rock in the Egyptian desert.

Highly spherical boulders on the shores of New Zealand.

Australian Lake set aglow by Noctiluca Scintillans.

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

This volcanic cave lake is essentially hard proof that Iceland is the most magical place on Earth.

Abandoned railway line circling the city of Paris.

Ruins of a German Castle on top of a towering stone pillar.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

Beyond being incredibly fun, not much can be said about the Hole with certitude.