Berkeley Springs State Park boasts the nation's only monument commemorating presidential bathing.

This 25-foot-tall gorilla made his way from the Wildwood boardwalk to a Pine Barrens gas station and deli.

Pennsylvanian mass grave and possibly mass murder.

This beautiful stone arch bridge wasn't even expected to stand for one day, but people have been crossing it for centuries.

Winding country roads in eastern West Virginia lead to an extraordinary place populated by fiberglass giants.

Built in the 1850s, this church was of the first five churches constructed in Harper's Ferry.

Time travel with sweets across history at this research-based candy store.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

This advertisement for talcum powder was painted on the rock face and has since defied removal.

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

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 famous bell was secreted away and hidden in a church in Allentown during the British occupation of Philadelphia.

A fascinating community art piece created by students, teachers, and noted Philadelphia artist Isaiah Zagar.

A "house to which to flee" for settlers in colonial Pennsylvania.

A unique museum that uses visual art and storytelling to reveal the hidden history of the Gullah Geechee and their African ancestors.

Tijuana's legendary jai alai or "basque ball" palace is now a massive music venue.

A bronze monument to the infamous radio broadcast in the real New Jersey town where the fictional Martians crash-landed.

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

One of the world's oldest continually operating bookstores.

"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

This arcade is one of the last places to catch a public performance by the now-defunct ShowBiz Pizza's house band of animatronic animals.

This giant, rotating globe was built to celebrate the expansion of a company that makes steam cleaners and pressure washers.

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

This water tower commemorates the invention of the transistor on this site in 1947.