Ralph Waldo Emerson spent two years living here decades before it became a Frederick Law Olmsted-designed park.

An eccentric inventor's castle home with its own indoor weather system.

A bizarre house filled with an astounding array of collections.

The oldest continuously operating fish market in the United States.

A rotating cast of guys and dolls in front of a Washington, D.C. building.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

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

This abandoned Victorian-style house was built in 1884.

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

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

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

Bizarre Cavern.

This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

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.

Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

The trials and tribulations of marking Poe's grave.

Eighteen miniature death-scene dioramas.

The intriguing personal collection of a professional demon-chaser.

An art deco ice cream shop covered in vintage train station tiles.

Take a drunken tour inside the world's largest known geode.

Step inside Lucy, the world's largest "elephant."

An 18th-century Catholic church converted into an eccentric temple of music and bacchanalia.

A historic covered bridge is but one example of an oddly prevalent American urban legend.