The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

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

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

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.

The "lovely red Vega" of the legendary record-settling pilot.

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

The remains of Martha, the last known passenger pigeon, serve as a tool to educate about conservation.

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

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