A museum dedicated to the history of electric interurban transit near the home of the first electric trolley system in the United States.

The train collection of an eccentric New England seafood mogul is now a National Historical Site.

A well-preserved example of an early industrial operation in the northeastern United States.

A eight-foot-tall statue resides in the heart of Pennsylvania anthracite coal country.

Designed by the company that provided water to the entire community.

The lasting remains of the region's once booming cement industry.

George Washington, Alexander Hamilton, and Benjamin Franklin all slept at this humble inn.

Come for the history lesson, stay for the mule-pulled boat rides.

Dedicated to one of the most successful boxers to compete in the heavyweight division.

In use from 1742 to 1910, only flat headstones were allowed in this cemetery.

One of the world's oldest continually operating bookstores.

One of the first commercially successful anthracite-powered iron-making operations in North America.

Visitors to Salt Springs State Park are encouraged to literally put their two cents in Penny Rock.

This extraordinary Depression-era expenditure was modeled after a postcard of a Mediterranean hotel.

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

A daily replay of the experiment that proved the rotation of the Earth.

A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

Miraculous tree that seems to sprout out of solid rock.

Ever wanted the laymen's version of your credit card fine print?

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

Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

This lush forest valley was once mined for lumber to the extent that it was once nicknamed "The Pennsylvania Desert."

Yo, Adrian!