This unique structure is the only one of its kind in Virginia.

This little brick tunnel built by Confederate forces was used to conduct surprise attacks on the railroad.

The narrowest house in America is seven feet of pure spite.

A whopping 14,000 copper coins cover this miniature fighter jet.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

This unacceptably tall building was the real reason for Washington, D.C.'s skyscraper ban.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

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

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

During the Industrial Revolution this “Temple of Invention” was full of intricate miniature machines and gadgets.

Light bulbs, scrap wood, and tinfoil comprise this homemade throne of the gods.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

The house where John Wilkes Booth conspired with his co-conspirators.

Fittingly, America's museum of architecture is itself a magnificently designed old building.