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

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

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

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

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

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

A 200-year-old bar with a cheeky name claims to have served Edgar Allan Poe his final drink.

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

A priceless collection of the Nation's cryptologic history.

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

A local farm's collection of unusual structures from a now defunct storybook amusement park.

Bizarre Cavern.

An eerie, decaying ghost town destined to fade into the forest.

An astounding collection of medical specimens, including bits of President Lincoln.

The man who first patented the Ouija board rests in peace beneath a headstone that playfully reflects that achievement.

The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

The trials and tribulations of marking Poe's grave.

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

Eighteen miniature death-scene dioramas.

A suspended garden, now gone, once hung in the middle of this abandoned church.

This NASA test station is home to some of the world’s largest and most powerful space environment simulation facilities.

For decades, this waterfall remained hidden because of an artificial dam.

This whimsical campus lawn is dotted with large sculpted numbers and hidden mathematical formulas.