These unusual rooms on wheels are holdovers from the 1960s.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

Extraordinary objects lurk in this quintessential regional museum.

A lone historical marker off the highway and scattered debris are all that remain of this Cold War-era missile site.

A former major munitions plant that has been converted into a sprawling art space.

This pun was simply waiting to come to life, and one defense contractor made it so.

Scenic mount trashmore, Virginia Beach's most curious waterfront still has a couple of secrets.

A museum dedicated exclusively to aircraft used in the military.

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

The only place for a truly presidential dram.

Collecting 700 years of mechanical death-dealing, the NRA's sprawling gun museum is a revealing testament to the American obsession with armament.

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

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

This pre-Revolutionary War grist mill ground corn and flour for soldiers in seven American wars.

One street divides a single town that stands in two U.S. states.

This Virginia railway overpass is said to be haunted by a serial killer in a rabbit costume.

Heron, whitewater rapids, and urban industrialism all add to the beauty of this concrete nature walk.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

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.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.