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

A tiny piece of the Moon is embedded in this stained glass masterpiece.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

Home to items never before seen by the public.

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

The only Civil War battle in Washington D.C. took place near this highest natural point in the city.

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

Once home to seven different roller coasters, Glen Echo has undergone many transformations since its founding in 1891.

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

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

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