The seamy, underground secrets of Portland's criminal past.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

On the Oregon coast there is a natural hole that seems to be draining the sea.

The graffitied ruins stand hidden within the Pennsylvania woods.

This hidden gem of a garden has one of the only surviving Victorian ferneries in America.

A park full of outsider art, created by college students studying outsider art.

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

A stone arch leads to a cavernous 1930s spring house tucked away in the Pennsylvania woods.

Where America's first doomsday cult awaited the end of the world.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

World's first "penitentiary," meant to be humane, drove men insane.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

The remains of one of the last mining camps developed on the New River.

Home of a 28-foot tall stalagmite known as the War Club.

One of the few surviving examples of the first lock and dam system built on the Ohio River.

This abandoned dream castle and its cemetery look out over the city that once inspired their creation.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

The museum calls itself the "National Museum of the Paranormal" and is full of eerie oddities.

Railroad came. People came. Railroad left. Town died.

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

A wonderland of folk art including the World’s Largest Grit.