The former residence of Elizabeth “Mumbet” Freeman, an enslaved African-American woman who successfully sued for her freedom.

A man used his Civil War-era fortune to build this sanctuary in memory of his wife.

The mansion home of author Edith Wharton.

At this farm in upstate New York, the former president plotted his reelection campaign.

Locals purchased this abandoned quarry in order to make sure it continues to be overgrown.

The tragic heiress Barbara Woolworth Hutton built her seventh husband this Japanese-inspired palace in Mexico.

Herman Melville wrote 'Moby Dick' in this landmark 18th-century house surrounded by farmland.

Antique gaffe kept in the basement of a small Vermont natural history museum.

A monument to the military service of America's greatest traitor refuses to even name him.

The Vermont square that inspired Shirley Jackson's "The Lottery."

This cavernous abandoned marble mine is popular with ice skaters in the winter.

Hundreds of personalized inscribed planks make up this historic boardwalk.

This Cape Cod museum exhibits what it claims is the only authenticated pirate treasure in the world.

This little-known rival to the Library of Congress houses one of the largest collections of pre-1876 American books, newspapers, and manuscripts.

A spooky and decrepit mental health facility is slowly being replaced with newer digs.

This miniature feudal castle was built on a whim to honor a US Navy pioneer.

A freighter full of exotic animals ends a harrowing voyage impaled on uncharted rocks in the Boston Harbor.

The site of the tragic isolation of Nipmuc Native Americans left to perish in King Philip's War.

A daybeacon pyramid is about all that's left of this island that is said to have sunk due to a pirate's curse.

Supposed Massachusetts Grave of a pre-Columbus Knight Templar.

A steampunk wonderland that preserves America's history of industrial innovation.

This exhibit is devoted to the games and wonder that Hasbro has brought children worldwide.

The self-proclaimed world's smallest museum, located next to a Massachusetts sandwich chain.

This former Masonic hall has been turned into an art project that uses even more metaphysical iconography.