The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

A traveling postal dog covered 48 states and more than 140,000 miles, and he lives on as taxidermy, patched up with a rabbit's foot and a pig's ear.

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

There just so happens to be a court even higher than the U.S Supreme Court: a basketball court in the building itself.

A nostalgic bibliographic gem.

During Prohibition, the U.S. Congress had an "official" bootlegger, with his own Capitol Hill office.

One critic described it as "middle Mussolini, early Ramses, and late Neiman-Marcus." Another called it an architectural "natural disaster."