A rare cluster of alien-like plants grows along a dusty highway.

A macabre anatomy museum tucked within an old Italian hospital.

Longest road tunnel in the world features an air treatment plant and the illusion of daylight.

This abandoned oil depot produces world's longest echo in a manmade structure.

Naked scientists race around the pole in the frigid cold to try to join Antarctica's exclusive 300 Club.

A brick-paved former section of the historic coast-to-coast highway.

A clerical error gave rise to this imaginary micronation in the southwestern corner of Estonia.

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

A careful eye can find hundreds of dinosaur tracks running along the Connecticut River.

A sculpture of a giant hand reaches for the stars in the middle of the Atacama desert.

A young state senator's deathbed plea to be buried inside a rock resulted in this unusual grave site.

A rocky face gazes out over an enormous volcanic crater.

The once forbidden "secret cabinet" of erotic art from excavations of Pompeii and Herculaneum.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

A dreamlike medieval church dug into the tuff rock, with unusual carvings and possible traces of the Templar knights.

In Northeastern Iceland lies something of an oxymoron: a steaming desert.

A remote hill on a stretch of country road where the laws of physics are defied... or so it seems.

A Frankenstein blend of science and art allows one tree to produce 40 different types of stone fruit.

Hidden amid the tropical forest in the Caribbean Sea are the decaying ruins of the Cocaine King's luxurious island party home.

A mapping error in the 19th century made loggers think this section of the forest was underwater.

An acoustic anomaly with a mysterious cause.

A high-octane shrine to the greatest Texans who ever lived.

Hundreds of unusual wheel crosses poke above the earth in this small Estonian cemetery.

A metal ring in the middle of the road marks the exact spot where the Soviet satellite crash-landed in 1962.