A portion of the old Pirates stadium over which a defining home run once flew still stands even after the rest of the stadium was torn down.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

First a root beer ad, then a golf course clubhouse, and finally a massive teapot.

This public park was the site of the largest civilian disaster of the Civil War.

A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

A museum dedicated to the history & joys of the trail & your best chance to see hikers throwing up ice cream.

Outsider art meets paleontology at this roadside reptile repository.

The final resting place of the tragic king and queen of the Jazz Age is tucked away in a small Maryland graveyard.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.

This pun was simply waiting to come to life, and one defense contractor made it so.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

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

Berkeley Hot Springs presents to you "the only outdoor monument to presidential bathing."

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

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

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

A monument marks the location of the first successful steamboat demonstration.

Bizarre Cavern.

Memorializing an American tragedy of massive proportions.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

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

The pop art icon's gravesite is broadcast 24 hours a day on his museum's website.

This Pennsylvania cave holds evidence of the oldest known inhabitants of North America.

A preserved 18th century homestead in Western Pennsylvania marks the spot where the Whiskey Rebellion began.