A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

A multi-storied adobe complex has been inhabited for more than a thousand years.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

This two-room shotgun shack in Tupelo is the birthplace of a King.

The world's tallest doric column is this Ohio monument to a naval victory in the War of 1812.

The spectacular collection of one of the world's best woodcarvers.

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

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

Rare recess caves fill this unbelievably beautiful Ohio park.

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

This restaurant proudly displays bread signed by the 39th president.

This unique collection collects pieces of art etched into thin pieces of stone.

An unassuming 13-acre park is home to over 12,000 roses.

This whimsical campus lawn is dotted with large sculpted numbers and hidden mathematical formulas.

Georges Seurat’s pointillist masterpiece has been recreated in Ohio in topiary form.

An 18th-century Catholic church converted into an eccentric temple of music and bacchanalia.

Color-coded signs direct drivers on a network of routes designed to avoid Pittsburgh traffic.

This spot memorializes one of the greatest plays in NFL history, unless you happen to be a Raiders fan.

This permanent exhibition celebrates the finest of our heartless automatons both real and fictional.