Entombed in this strange, white stone hill are the deadly remains of radioactive weapons production.

A sculpture of a giant man escaping from the depths of the Earth.

No one knows how this Pacific Northwest spruce tree came to have so many trunks.

If there's another drive-through golf-cart bar in a bat-filled cave on top of a mountain, we don't know about it.

This "little gallery in the middle of nowhere" is housed in a 170-year-old horse barn in the Missouri Ozarks.

Narrowest house in Boston.

A more than 260-year-old crypt built on Boston's oldest English burial ground.

The largest guitar store in the world has been visited by some of music's all-time greats passing through upstate New York.

The home, museum, and death site of Kodak's influential founder.

Hidden away in the city of Madison, Wisconsin is a nearly forgotten home that Frank Lloyd Wright built for a childhood friend.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

One of Frank Lloyd Wright's greatest—and favorite—architectural masterpieces was almost lost.

This unique crypt designed by Frank Lloyd Wright for his longtime friend was not completed in either man's lifetime.

Six tiny houses built for working class people form the largest intentional cluster of Wright homes anywhere.

One of Frank Lloyd Wright's final works was this UFO church.

These headstones and a few stone foundations are all that remain of a once-booming mining town.

Extremely famous in his native country, this Cracovian painter is all but unknown beyond Polish borders.

A passage grave used in neolithic rituals.

An enormous roadside pan tells the story of a battle for pie glory.

The eerie ruins of a remote abandoned hamlet said to be founded by the survivors of a shipwreck.

An abandoned town is hidden in Great Smoky Mountains National Park.

Some of the Old West's most notorious outlaws frequented this mining town.

This former mining hub holds a surprising abundance of undisturbed relics from the Old West.

The rocks in this arid basin leave trails of movement behind them.