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

Unique tower has outlasted a takeover of the company.

Despite its lavish ornamentation, and wholesome lifestyle of its devotees, this mountain commune has faced its share of issues.

A singular collection of hand-built art deco cars are held in a building with style to match.

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

Landmark dedicated to the plight of the American Indian in the 21st century.

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

Rabbit Hash is a heaping slice of Americana from another era, with a very peculiar origin behind its unusual name.

A wonderful and easily overlooked museum tucked in Ohio's Burke Lakefront Airport.

Unique collection containing a wide and curious range of contraceptive items.

Marvel at this turn-of-the-century masterpiece that has been turned into a rather stately supermarket.

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

An art deco ice cream shop covered in vintage train station tiles.

An unoccupied lighthouse encased in layers of ice from the waters of Lake Erie.

Abandoned since the 1950s, the streetcar lane beneath the heavily trafficked bridge lays empty and unused.

An obsolete, vanishing traffic device warns Cincinnati drivers away from middle-of-the-road obstructions.

This Czar-funded, onion-domed, lavishly muraled Orthodox Church played a starring role in "The Deer Hunter."

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

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

This humble star-gazing center touts itself as the "Birthplace of American Astronomy."

What is it about mushrooms that makes people wish they lived inside of them?

The highest point in Indiana is curated by an Eagle scout but may be in danger of losing its record to a nearby garbage pile.

Take a drunken tour inside the world's largest known geode.

Deep scars on the earth left by the Ice Age.