A desiccated merman and a walrus penis bone are among the oddities in this eclectic collection of shipwreck treasures.

A grotesque Fiji merman dwells within this traditional Dutch-style building.

These old doors are covered in the signatures of Rehoboth Beach artists dating back to the 1930s.

America's first serial killer rests in anonymity.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

An Irish Memorial commemorating those who perished due to potato blight.

Century-old shop, specializing in Occult products.

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

An extraordinary collection of vampire-themed antiques lurks on the second floor of a store.

World's first "penitentiary," meant to be humane, drove men insane.

Home of the only civilian casualty at the Battle of Gettysburg.

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

A faded sign from the 1920s remembers Baltimore's resistance toward banning alcohol.

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

Fiji mermaids, mummified remains, and recreated cryptids are among the morbid oddities at this Maryland museum.

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.

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

Eighteen miniature death-scene dioramas.

A model home in the Medical Examiner's Office in which grisly death scenes are staged to train forensic investigators.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

Remnants of a storybook amusement park hidden behind a strip mall.

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

A wondrous old library overlooking the nation's capital.