This stately building in Alexandria, Virginia was built by Freemasons to honor one of their most famous members.

An innovative attempt to break a siege in the American Civil War still scars the earth today.

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

This beautiful vintage movie palace has seen little change in form or function since the 1920s.

At 207 feet, one of the world's longest continuous escalators.

This war hero's old shop remembers the fine line between medicine and quackery during the Revolutionary War.

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

Lines from a walking song are etched into a rock in Natural Bridge State Park.

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

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

This plaque celebrates the sister city relationship between Fredricksburg and Fréjus.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

The site of the climactic scene from the classic horror film is now a historic landmark.