The world's longest known cave system.

The tragic reality of a town riddled with rumors of haunts, chemical spills, and serial killers.

Deep scars on the earth left by the Ice Age.

Take a drunken tour inside the world's largest known geode.

The remains of an abandoned dinosaur theme park litter the woods just off the highway.

These sub-farmland caves are home to a majestic stalactite known as the "Crystal King."

This pair of centuries-old magnolia trees was once struck by a Babe Ruth home run.

A roadside hotel that you can’t stop at. 

An early 20th-century jail not far from the infamous Tombstone, Arizona.

The overgrown ruins of this once majestic castle sit forlornly in the Scottish countryside.

Built by an accountant with a dream of running a grand resort, this estate has sat vacant for over half a century.

This massive metal sculpture in the shape of a folded paper airplane overlooks a Utah mountain.

Colorful sand dunes create a unique attraction in this part of Utah's red-rock country.

This church was constructed by a shipbuilder and designed like an upside-down boat.

Almost all that remains of a town dedicated to supporting the First Transcontinental Railroad.

The only remains of a 1918 section of Route 30.

A spectacular overlook of the Little Grand Canyon of the San Rafael River, a deep sandstone gorge streaked with orange, red and white in a remote, uncrowded part of Utah.

A crack flared at the base provides a pathway completely through a sandstone ridge near Moab.

This large, castle-like structure is hidden amid the mountains on the grounds of the Utah State Hospital.

A towering tribute to decisiveness stands on the spot where Brigham Young and his followers decided that this must be the place.

Kay Andrews's recipe was so good, her family immortalized it in stone.

This outsider art paradise is filled with dinosaur sculptures crafted from recycled machinery.

"May the force be with you always."

This lava formation earned its whimsical name from the log-like formation of it stones.