This lone tree and dramatic sandstone outcropping are so beloved by Michiganders they can be found on one of the state’s coins.

Large one-man sculpture park in Michigan.

A 20-foot-tall quarter commemorates George Washington’s ties to Bedford County.

Frank Lloyd Wright’s most iconic home dangles over a Pennsylvania waterfall.

The last remnants of Fort Pitt also hold the distinction of being the oldest structure west of the Allegheny Mountains.

Despite violent work crews and massive delays this abandoned canal tunnel was built to last into the modern day.

A star fort along the C&O Canal in western Maryland that protected America in three wars.

Built by the patriotic residents of Boonsboro in a single day.

Once the home of a noted Civil War spy, the two-story brick house now serves as a museum.

The Grand Ole Opry's big voice came from a small home in rural Virginia where she was eventually buried.

Washed out by the Johnstown Flood in 1889, the surviving portion of the original two-span bridge now resides at Fishing Creek.

A pre-Industrial Age iron furnace and the site of a nearly-forgotten piece of Black history.

According to local history, this cast-iron canine was nearly melted down for bullets during the Civil War.

This shale formation along the Appalachian Trail once inspired the third president of the United States.

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.

Rumors persist that a bottle of whiskey is sealed within this Demijohn-shaped adornment.

This replica of the Greek structure is in the heart of Nashville.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

Meet Rita the Rock Planter, one of Danish sculptor Thomas Dambo's enormous wooden trolls.

Inside this casino, visitors are treated to slot machines and a rare German Christmas pyramid.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).