A six-foot pair of socks hangs from a drawer of the world's largest bureau.

Art museum based around the collections accumulated over 58 years by one eccentric thrift store owner.

A psychological self-portrait in the form of a giant, segmented head.

Gnarled canopies of pink and purple wildflowers arch over the trail to the summit.

A curious collection of oddities including a lock of Alexander Hamilton's hair and Harry Houdini's ouija board.

North Carolina's finest examples of Native American pictographs have survived for 5,000 years.

This nine-story building can be played like an instrument.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

Who needs fancy modern water slides when this giant North Carolina rock works just as well?

This road in the Great Smoky Mountains was supposed to assuage a displaced community, but ended up a $52 million dead end.

Mysterious ancient boulder carved with petroglyphs in the mountains of Western North Carolina.

An enormous natural sandstone bridge in Kentucky.

The mysterious white squirrels of this Illinois city are treated like sacred cows.

The city of Rockford, Illinois is symbolically protected by a quartet of fittingly stony sentinels.

An avant garde art museum at the University of Chicago.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

The face of a woman pushes its way through the earth.

Internationally known record store and purveyor of "dusties."

Shop of curiosities with a dinosaur museum tucked in its basement.

Nonprofit art center that promotes outsider, intuitive, and self-taught art.

This unauthorized stone mermaid was secretly carved out of public stone before being permanently preserved.

A hollow cement depiction of time's inexorable effect on the human body.

A century-old network of freight tunnels underneath the city's historic business district.

A gothic church spire sits atop this skyscraper, the tallest church in the world.