A clone of a cloned tree that was so important it allegedly had its own guards.

The tallest The Church of Jesus Christ of Latter-day Saints temple in the world soars above the Beltway.

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

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

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

FDR's Art Deco hospital tower was hopelessly inefficient.

The wooded estate of the Forest Service employee responsible for D.C.’s cherry blossom trees.

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