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

A Prada store in the West Texas desert that is never open for business.

This old train trestle and collapsed tunnel once allowed the railroad to negotiate the steep slopes of the Colorado Rockies.

These decaying bridges 1,000 feet high are a reminder of the skill it took to cross the Colorado Rockies by rail.

A local prank turned town icon.

A skeletal collection of former nautical mainstays.

The ruins of this Thomas-Jefferson-designed mansion have been left to crumble since the Christmas Day they burnt down.

Behold the rickety wooden glory of the world's oldest operating roller coaster.

These crudely shaped folk giants may be the the second most photographed statues in the U.S.

The remnants of a wooden-hulled fleet built and abandoned in WWI, now home to a thriving ecosystem.