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

Affectionately known as "Lord Bot," this historic statue has a cult social media following and rightly claims to be “the most metal inhabitant of the Wren Yard.”

Rumor has it the hot dog stand was targeted by two Russian nuclear missiles.

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

The romance of early commercial flight still fills this Art Deco destination.

The rogue roots are gradually consuming some of the historic marble grave markers.

The Grand Ole Opry's big voice came from a small home in rural Virginia where she was eventually buried.

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

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

The only recreation of William Shakespeare's indoor playhouse.

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

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

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

One of the last active volcanoes on the Eastern seaboard.

Outsider art meets paleontology at this roadside reptile repository.

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

An enormous warehouse filled with parade floats collected from over 50 years of patriotic celebrations.

A former mental hospital founded in the 1930s by a eugenicist who advocated for the forced sterilization of patients.