While most wind tunnels test scale models, the "Cave of Winds" was large enough for actual airplanes.

Look closely and you’ll notice that the color changes a third of the way up the tower.

The "lovely red Vega" of the legendary record-settling pilot.

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

Perhaps the most scandalous statue of America's first president.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

The largest land animal skull ever discovered.

This museum holds not just a world class collection of firefighting artifacts and gear but even the region's first fire station itself.

Sitting in the arguable birthplace of the Wild West, this museum holds the largest collection of bronco busting bric-a-brac in the world.

An immersive art experience built by local arts collaborative, Factory Obscura, in the building formerly known as The Womb, a psychedelic arts center founded by the frontman of the Flaming Lips.

Travel through the hidden underbelly of the city in colorful tunnels filled with art and history exhibits.

Collection of skeletal systems from the "world's leading supplier of osteological specimens."

The U.S. Navy's last diesel-electric submarine rests half-submerged in the middle of Portland.

This sandstone mansion was the home of two of Oregon's most important pioneers.

Portlandia is the second-largest copper repoussé statue in the United States.

10,000 flowered plants bloom in the City of Roses.

The world's smallest park was dedicated in 1948 as the only colony for leprechauns west of Ireland.

The magic's in the hole!

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

Granting the right of way to ships over surface traffic since 1917.

A commemorative mural in this tiny Ballard park honors the neighborhood's rich Scandinavian ties, particularly with Seattle's Norwegian sister city Bergen.

An ice cream parlor chain that caters to vegans and pinball fans equally.

A wall of chewing gum moonlights as collective art.

A museum dedicated to the history and exploration of both popular music and science fiction.