A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

Locals dubbed this abandoned abode the "gingerbread house" because of its odd architecture.

This stunning gothic ruin was a casualty of the Indiana steel industry crash.

A turn-of-the-century architectural marvel built on healing mineral springs and salt licks.

The longest navigable underground river in the United States is home to countless blind and albino animals.

An institution that preserves the history of institutionalization.

Treehouse motel and treehouse-building school.

Hollowed out cedar log tubs set in an ancient towering forest.

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

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

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

Oregon's unexpected high desert, displaying layers of time in a colorful show.