The railroad tunnel nicknamed the "Bloody Pit" for taking the lives of hundreds during its construction.

From economic backbone of a community to deadly diving hole, these former stone quarries are now a park for rock climbers and graffiti artists.

On top of Gibbet Hill lie the ruins of a lavish turn-of-the-century estate that never quite came to be.

Naturally formed white marble arch housed in an abandoned marble quarry from the 1800s.

The walkable ruins of an 19th century hotel, destroyed in a horse cremation gone wrong.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

A collection of full-size movie monsters opened to the public.

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.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

A restored historic movie theater is the perfect place for a regional film archive.

Its unique collection details the history of the state's svelte railroads.

An elderly widow still operates the incredibly detailed model railroad she and her husband built by hand.

The debris forms a solemn memorial to those who died in a 1963 accident.

Steam engines and conveyor belts are remnants of a genius system left in the middle of the Maine woods.

Former laboratory of radical psychiatrist Wilhelm Reich.

The world's oldest and largest museum of mass transit vehicles.

This uninhabited island in Maine is home to various works of art left by visitors over the years.

This 19th century granite fortification is one of the most well preserved forts in New England.

Toy museum in a former tavern is the expression of one man's life pursuit of the aesthetic power of cartoon imagery.

New England's tallest light house stands on an island with a history of cannibalism and death.