A relic of FDR's brief foray into utopian urban planning.

A labor of love built by local hang-gliding enthusiasts, this ideal launch spot was outlawed by the authorities and has since been largely abandoned.

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

The hidden ruins of a mill that is linked to an attempt to assassinate the vice president of the United States.

This 16-foot, intricately detailed model of the Gearing-class destroyer has been called the most detailed model ship ever built.

A historic cemetery filled with quirky faux wood art and unique tombstones.

This scenic Maryland park was the site of one of the worst prison camps of the Civil War.

A haunting exhibit in a wildlife refuge center highlights threatened species and the conservation efforts needed to save them.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.