America's greatest forgotten garden and the former stomping grounds of Son of Sam.

An 18th century monument regularly tagged with unsettling graffiti referencing a 1940s unsolved murder.

A small museum in this border city displays the contraband art that has been stolen back from smugglers.

Hidden amid the old-world charm of Savannah is a museum dedicated to the world of oddities and criminal history.

The ghostly remains of what was once the world's richest copper mine.

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

A Bibliophile's Dream.

Come for the giant taxidermy lion, stay for the knick knacks at this Minneapolis curiosity shop.

A beautiful oddities shop crammed with strange and morbid curiosities.

A museum devoted to bringing to light forgotten or neglected histories through exhibitions, education and public programming.

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.

The strikingly modern structure stands out among the brick buildings speckling the Harvard Business School's campus.

Secret gardens just a few miles from downtown Atlanta.

Tour the sci-fi-esque reality of governmental disease management.

An actual 1957 Cadillac De Ville, encased in 15 cubic yards of concrete.

This grove of ghostly cedars was killed in 1700 by an enormous tsunami, felt from the United States to Japan.

A short hike into the mountainside forest reveals a decaying 1890s town.

This stunning Connecticut mansion is actually just a one-room-deep hoax.

This "thrice-cursed" island is allegedly home to Captain Kidd's lost treasure.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

137 graves holding New England's earliest residents.

This abandoned psychiatric hospital once housed more than 4,000 patients in the middle of a quaint New England town.

An archival collection of over 2,200 case studies which includes human brain specimens and tumor specimens.