The Bong-area park police have asked visitors to please, stop stealing the signs.

Once forgotten and built over, this historic Black cemetery now houses a poignant memorial.

A secretive collection featuring objects that were designed specifically for U.S. intelligence operations.

A tribute to the twin ideals of religion and patriotism, built by a Catholic priest from rocks, glass, and innumerable found items.

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

One man has spent decades faithfully constructing this unique brick and cinderblock castle.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

The remains of one of America's first radiation testing grounds still rest ominously in a Georgia forest.

Hidden amid a collection of trails is the site of a tragic crash.

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