Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

These unique rock formations were created during the Ice Age.

An industrial waste tourist attraction.

An outlandish shoe shaped house built by an eccentric millionaire.

In the bowels of a 19th-century brewery lurks a fine-dining restaurant offering an array of themed feasts.

What looks like a simple quaint estate in rural Pennsylvania was in the 18th century home to a small monastic community.

An abandoned 19th century quarry in the middle of the woods, remade by unnamed wanderers into a massive series of rock thrones.

This elaborate High Victorian Gothic structure is one of the world's few 16-sided buildings.

The first American home of the isolated, egalitarian religion has a trove of Shaker architecture and artifacts.

This once-grand marvel of engineering is now 41 miles of scenic hiking trail.

One of only two commuter aerial tramways in the United States.

Site of the first pathological and bacteriological research facility in the United States.

In its day this historic fort held 100 cannons pointed in almost every direction to protect New York.

Eccentric stone cairns built on a public New York City beach.

Devotional offerings and pleas for intercession are left at this Depression-era shrine inside a nature preserve.

Final resting place of two dozen New York City harbor ships.

A miniature world of concrete and stone in Springfield, Ohio.

See the nearly two-century-old ruins of pre-railroad America at the former site of a lock on the Ohio and Erie Canal.

The site of the worst mining disaster in Ohio's history.

Marvel at this turn-of-the-century masterpiece that has been turned into a rather stately supermarket.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

This steamer is known as "The ship that built Cleveland."

Cleveland's giant "free" stamp is a nod to the Civil War, but was misinterpreted for years.

An abandoned, rusty old relic of railroad history stands at attention over the Cuyahoga River.