These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

America's only nuclear missile silo open to the public.

This restored opera house is named after a soprano known for tragic romance, exile, and a truly uncomfortable wedding.

This famous bridge twisted itself into oblivion, but not for the reason you might think.

The small town of Poulsbo in Washington state is the next best thing to the Kingdom of Norway.

An abandoned network of military bunkers and tunnels open for anyone willing to descend into the darkness.

This working class sculpture pounds his hammer all the livelong day.

The historic bar where local ship captains, traders, and gold miners would come together to do business a century ago.

The first park built over a freeway is a brutalist masterwork.

A walk through the historic city center, under the streets of Seattle.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

This tiny square mile of Canadian sand was once considered the world's smallest desert.

A monument commemorating the role of Alaska's native Tlingit guides in the Klondike Gold Rush.

A tiny wilderness cemetery commemorates the deadliest episode of the Klondike Gold Rush.

A geological mystery on Camelback Mountain.

This southwest-styled home in Santa Fe claims to be the oldest house in America thanks to an ancient bit of foundation.

Its history includes dinosaur fossils, cattle rustlers, Georgia O'Keeffe, and a mythical giant rattlesnake named Vivaron.

More than 21,000 images fill this overlooked gem of a prehistoric site.

This quirky hot springs town known to locals as "T or C" was named after a radio show.

Despite time, colonization, and the brutal New Mexican heat, these Pueblo ruins still stand.

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

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

The oldest continuously occupied public building in the United States.

A small side chapel in Santa Fe's basilica is home to the oldest statute of the Virgin Mary in North America.