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.

This poor little statue is the most vandalized memorial in Washington.

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

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

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

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

A tiny piece of the Moon is embedded in this stained glass masterpiece.

This grove of ghostly cedars was killed in 1700 by an enormous tsunami, felt from the United States to Japan.

From overly ambitious (and eventually abandoned) atomic dream to bustling office park.

The largest self-built castle in the U.S., six decades in the making.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

A tribute to the Nirvana frontman hides beneath the bridge that was the singer's beloved hangout spot.

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

Residents of Fremont in Seattle have considered it the center of the universe since the 1970s.

Statue of Lenin, from Cold War era Czechoslovakia, now in a neighborhood of Seattle.

This park celebrates a sister city relationship that survived the Cold War.

A large AIDS Memorial Pathway art installation provides a moment for quiet contemplation in this public park.

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

A colorful architectural gem in Seattle’s uniquely modern Central Library.

An extraordinary collection of aircraft and spacecraft on display at the original site of the Boeing Company.

This former coal gasification plant found a curious second life as a popular public park.

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

42nd story Pyramid shaped penthouse tops Seattle's oldest skyscraper.