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

This lovely picnic spot featuring thunderous jet landings is an aircraft spotter’s dream.

America's first federal monument.

Volcanic stone sentinels stand watch at a Korean Bell Garden in Virginia.

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

The resting place of a Civil War celebrity's amputated limb.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

Outsider art meets paleontology at this roadside reptile repository.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.