Unlike other abandoned asylums this empty institution welcomes visitors, just don't go in the buildings.

Three prestigious academic collections come together to create a world-class natural history museum.

19th-century operating theatre in which the use of ether was first demonstrated - plus, a skeleton and a mummy!

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

Friction between grains of sand cause a curious "singing" sound.

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

One of the most scenic falls in Massachusetts has a history of death and grim legend.

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

A morbid secret lies hidden within the beautiful walls of the Boston Athenaeum.

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

Two thousand artifacts from around the world collected by one woman who loved to travel.

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

A beautiful Victorian-era cemetery, complete with a miniature village.

An enormous, inside-out glass globe built in 1935.

Once the largest public hospital for the mentally ill was also surrounded by controversy.

Some of the earliest burial grounds of New York State are to be found hidden away in this quaint town.

An abandoned 19th century quarry in the middle of the woods, remade by unnamed wanderers into a massive series of rock thrones.

This once luxurious Catskills resort is now a haunting ruin.

One of only two remaining Victorian-era greenhouses in New York.

Once America's longest-manned military fort, now an abandoned hulk.

The first neighborhood to implement the Garden City model in its suburban planning.

Astonishing collection of helmets, scientific instruments, and medical models.

The remains of the furnace and iron works that produced the massive Hudson River Chain still stand in the woods of New York.

The only remaining piece of hull of the most decorated US ship of WWII is this giant name plate.