Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

This steamer is known as "The ship that built Cleveland."

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

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

The only depiction of Abraham Lincoln holding a weapon, and the names of all 9,000 Cuyahoga veterans of the Civil War.

Cleveland's giant "free" stamp is a nod to the Civil War, but was misinterpreted for years.

The highest point in Arizona is an oddly snow-topped peak within the otherwise arid state.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

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

A morbid gateway to an Alaska town prides itself on the hunting history it represents.

North America's first frozen mummified remains of an ice age steppe bison, the 36,000 year-old mummy named "Blue Babe."

A trading post in the North Pole where children send letters.

The king of U.S. high points towers over every other peak on the continent.

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

The heroic sled dog of the 1925 serum run is preserved in taxidermy.

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