A solitary tree has grown up all alone on Lake Wānaka, backdropped by the beautiful Southern Alps.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

The remains of the first punk club in L.A.

Three columns of volcanic rock shoot out of the ocean.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

This quaint Italian town keeps losing ground as the sides of its plateau slowly erode.

"Only the devil could play golf here."

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

Labor provided by Great Depression-era programs restored these 25,000 acres in Tennessee.

Morocco's Argania trees are infested with nut-hungry goats.

Where once there was a train station bathroom, there is now this German burger joint.

Erosion and time have created a naturally-formed water park.

One of Ireland's most infamous prisons for rebels including men, women and children.

The world's brightest bioluminescent bay.

A subterranean shelter remains intact under a busy Paris railway station.

A park full of outsider art, created by college students studying outsider art.

This Japanese-inspired labyrinth of hot springs is hidden in a Chilean forest.

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

Europe's largest natural bridge has a 19th century royal chateau built into its side.

This Scottish bridge seems to compel dogs to leap to their death.

Five candy-colored villages on the Italian Riviera.

This historic national park is covered in the stunning ruins of red rock pueblos.

They call this long foot bridge a swinging bridge, but really it's the bouncing you have to watch out for.

This small museum in a former church crypt contains artifacts of the Elephant Man, Jack the Ripper and Florence Nightingale.