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

It was an experiment to prove that glacial boulders and rocks can be used in constructions and dwelling.

The only remaining historic maritime signal station in the United States.

An underwater statue of Christ blesses the depths off Key Largo.

Elevated freight railway turned wildly successful urban park.

This former crime corner has been turned into an eclectic community center.

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

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

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

Solar powered Spectacle Island features all-green facilities.

Since 1947, this living history museum has been providing an immersive look at life in Plymouth Colony.

The mansion home of author Edith Wharton.

Civil War Fort on an island in the Boston Harbor.

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

This roadside attraction attracts kids with dinosaurs before blindsiding them with geology.

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

An old trolley bridge was converted into a breathtaking garden bursting with colorful flowers.

Palatial mansion estate used in films including "Flowers in the Attic" and "The Witches of Eastwick."

Trash escaped from a landfill to fill beaches with all kinds of treasure.

Inspiring Herman Melville and Henry David Thoreau, Mount Greylock in western Massachusetts is the highest point in the state at 3,491 feet above sea level.

The hill that gave the Massachusett tribe, and later the state, its name.

This museum on a college campus pays tribute to the Arctic and to two explorer alumni.

An 80-year-old house built out of newspapers.