Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

The largest self-built castle in the U.S., six decades in the making.

Ship skeletons haunt Baltimore's waterways.

The shelves in the back of this thrift store are devoted to saving, not selling, retro tech.

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

Built by the patriotic residents of Boonsboro in a single day.

Walk a trail through a historic Quaker town that outlawed slavery in 1777 and was a major waypoint on the Underground Railroad.

The 320-year-old tree that greeted General Lafayette and rerouted an interstate highway.

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

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

An FDR-era tuberculosis sanatorium has stood abandoned in the suburbs of the U.S. capital for over 30 years.

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

Brain collection and database that narrows the gap between man and animal.

A cave on the Maryland border where civilians took refuge during the bloodiest battle of the Civil War.

A hidden alley in urban Baltimore is a haven for graffiti artists.

After hundreds of years of settlement, this once-bustling fishing village sunk into the Chesapeake Bay.

This abandoned sea fort has become an accidental bird sanctuary.

The ruins of this long-abandoned unsuccessful gold mine can still be found.

An intricately designed junk art house with four extravagant junk art cars hidden in the suburbs.

This English-inspired Maryland garden is home to acres of opulent plant life including bushes shaped into an entire fox hunt.

The remnants of a wooden-hulled fleet built and abandoned in WWI, now home to a thriving ecosystem.

The land is home to swimming ponies and a legendary 18th-century treasure.