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

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

Exact replica of the ancient monument, but much, much lighter.

Giant acorn-shaped 19th century gazebo from which suburban Washingtonians gazed upon the original "silver" spring.

She stares out across six lanes of traffic, clutching a musket and infant with determination.

A girls' boarding school inspired by the Chicago World's Fair, once abandoned, now restored to strange and scenic glory.

FDR's Art Deco hospital tower was hopelessly inefficient.

One of the oldest Catholic churches in the U.S., situated just east of Gettysburg.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.

Dogs, cats, horses, monkeys, frogs, and fish are laid to rest at the second-oldest pet cemetery in the U.S.

This recreation of a 19th-century dime museum is full of oddities.

A diorama of the Civil War, fought by cats.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

A pre-Industrial Age iron furnace and the site of a nearly-forgotten piece of Black history.

A Civil War Museum with some notable medical antiques.