A former waterfront market is now in the center of town due to some interesting Boston engineering.

The site of Paul Revere's historic two lantern warning.

The massive machine creates cracking displays of indoor lightning.

Radical Bookstore and Community Space.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

Mysterious 500-year-old tapestries depict a unicorn hunt.

Elevated freight railway turned wildly successful urban park.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

Creaky dinosaurs grow in the backroads of Monmouth County, New Jersey.

Historic town settled in the 19th century because of its convenient location along a popular coal transport route.

The rusting remains are visible sticking out of the waters of the Delaware Bay.

Once in a state of dilapidation, this candy-inspired fortress is now being revived.

Memorial to the 137 lives lost on a ship fire, the whole hulk of which washed up on the Asbury Park shore.

This monument pays tribute to the musicians responsible for creating the Sound Of Asbury Park.

Museum houses an impressive display of the origin and artistry from the now-quaint invention's history.

Infamous marsh filled with toxic waste, World War II-era London rubble, and dead mobsters galore.

Take a step into the workshop where Edison and his employees revolutionized the world.

In the power of this waterfall, Alexander Hamilton saw the potential for industry.

Vacant Beaux-Arts buildings that serve as reminders of a beach town’s glory days.

This stone tower marks a lookout point over the historic Washington Crossing, and maybe some buried treasure.

A former plant in one of the hubs of U.S. steelmaking has been turned into this museum celebrating the history of American industry.

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

Why have you never heard of the second most popular tourist site in New York?

Dispersed across 45-acres, 39 structures house a massive collection celebrating American Folk Art.