This abandoned radar station from the Cold War era now only broadcasts a seriously ominous air of isolation.

This decrepit abandoned building is made all the more eerie by its dark history.

Run by a eugenics advocate, this aging institution conducted secret radiation experiments sponsored by Quaker Oats.

"Try not to knock anything over!"

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

The first keystone arch railroad bridges constructed in America.

Once the largest gravity dam in the world.

Utopia and nostalgia mingle at the site of Bronson Alcott's ill-fated agrarian commune.

This hotel was the site of major events in sports and radio history. It was also used as a detention center during World War II.

A historic bridge no one is allowed to cross.

Hill-like structures formed by glaciers and sandy spits of land.

Plans for this peninsula included houses, the United Nations Headquarters, and a nuclear power plant. When none of them worked out, it became an expansive park.

Hundreds of personalized inscribed planks make up this historic boardwalk.

The largest collection of historic military firearms in the United States.

Marigolds, rosemary, Madonna lilies, and the Virgin’s Bower decorate this Massachusetts sacred garden.

The largest body of water in Massachusetts annihilated four small towns just to slake Boston's thirst.

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

Civil War Fort on an island in the Boston Harbor.

Where Eunice Williams was murdered by natives, and where locals say her ghost still haunts.

Colorful clay cliffs tower over an unofficial nudist beach on Martha's Vineyard.

Hut with supplies for shipwreck survivors.

The sprawling, eccentric estate of Ames and Ames, a brilliant botanist, and a genius inventor and artist.

The homestead of American patriot John Adams.

Overgrown ruins of a turn of the century island fort that sees very few visitors.