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

For decades, this waterfall remained hidden because of an artificial dam.

Learn about the history and craftsmanship of carousels inside this museum located in a former post office.

The only presidential monument to display a late POTUS's actual casket.

Ghost stories surrounded this “castle,” the only structure from a huge mansion that was never built.

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

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

A tunnel with windows, so you don't miss out on the impressive views.

The rocks of a certain area of Butte, Montana give off a musical ring when hit.

An architect's childhood fantasy treehouse made real.

This lovely university observatory continues to sit abandoned since its potential savior was sent to jail for fraud.

The Beaux-Arts aquarium boasts a vast collection of saltwater and freshwater fish on an island in the Detroit River.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

The fifth-longest natural arch in the world, and the longest outside China.

This amazingly preserved Gold Rush town is a historian's dream.

A spiritual vortex among the red rocks in Sedona.

A history of tragedy and a pile of eerie stories have contributed to this house's consistent ranking as one of the most haunted places in Ohio.

The beloved home to all publications indie, erotic, and punky.

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

A gorgeous garden oasis with winding paths, stone bridges, and a troubling history.

A beautiful final resting place for some of the noteworthy deceased.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.