The phrase "the shot heard around the world" was coined after a skirmish at this bridge.

This is the house that spite built.

This supermarket is suspended 25 feet above an interstate highway.

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

This small section of the Sleepy Hollow Cemetery is rotten with famous authors' graves.

One of the largest public collection of historic armored and military vehicles in North America.

This general store near Boston was once owned by Henry Ford, who had it relocated to a different town using a team of oxen.

This dam in the woods, built by Henry Ford with only manpower and oxen, holds no water and serves no purpose.

This Maine bridge may be the last wire-supported bridge of its type in the world.

The eccentric mansion of one the most popular horror authors of modern times.

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

On a former island, this old fortification once used to protect the Boston Area and started Edgar Allan Poe in his military career.

Supposed Massachusetts Grave of a pre-Columbus Knight Templar.

This evocatively named natural crevasse was created by a torrent of water that smashed right through a granite deposit.

Narrowest house in Boston.

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

No one really knows how these old hobby horses got here, but the herd keeps growing.

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

A historic bridge with a lovely acoustic anomaly.

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

Funded entirely by volunteers and donors this military memorial features a tank with a comedy line on its barrel.

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

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

America's "second most important bell" is a contentious spoil of the Civil War.