This abandoned sea fort has become an accidental bird sanctuary.

Ship skeletons haunt Baltimore's waterways.

This ruined quarry once produced the distinctive red sandstone used for construction projects in Washington, D.C.

A benevolent, 16-foot-tall river dragon lives on a suburban lawn.

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

Two dozen pinball games hidden away inside a most unlikely location.

A monumental statue of RCA's mascot now sits atop a historical society roof after a life of moving around.

An eerie, abandoned military base engulfed by nature and graffiti is now home to a local park.

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

A haunting exhibit in a wildlife refuge center highlights threatened species and the conservation efforts needed to save them.

This scenic Maryland park was the site of one of the worst prison camps of the Civil War.

This dig site outside D.C. is known for its exceptionally high density of baby dinosaur fossils and dinosaur eggs.