The abandoned mine where American troops discovered a treasure trove of art and artifacts hidden by the Nazis.

The Art Deco Silver Screen.

The remains of a World War II munitions factory still haunt the fields of this Twin Cities suburb.

A derelict bit of transportation infrastructure hidden in the woods.

This abandoned 19th century orphanage started as a boarding school for children of Civil War veterans.

A former mental hospital founded in the 1930s by a eugenicist who advocated for the forced sterilization of patients.

Once known as the Illinois Asylum for the Incurable Insane.

These molds for fiberglass statues have formed an eerie, accidental sculpture park.

A roadside spring pooling in an old bathtub where anyone can stop and sip.

A museum dedicated to exhibiting remarkable outsider art.

A wealth of local folk art, antiques, and curios, without ever leaving your car.

Farms are serving pizza made from their own fresh crops, a growing trend in the American Midwest.

A former utopian healing center created by a huckster and built by derelicts.

The ghost town that ended up on Ebay.

An abandoned mine now resembles a post-apocalyptic landscape of derelict buildings and blood-red pools of water.

One of the ghostly stops along Route 66.

This dormant volcanic crater has been converted from a roiling pit of magma to a pleasant hiking spot.

This punny mirror of another Wisconsin attraction is exactly what it sounds like.

A magically clear, blue river that seems to spring from nowhere.

This stunning natural double arch, the largest in the Alps, went undiscovered until 2005.

This wondrous waterfall rushing down a green-covered mountain wasn't discovered until 2010.

A four story, football field-sized, nine-grotto creation made of shells, minerals, and rare stones.

Isolated atop this Balinese sea crag is a lovely Hindu temple that is said to be guarded by sea snakes.

One of the largest bamboo bridges in Asia, located right next to a bamboo school.