World's only nuclear reactor operated by liberal arts undergraduates.

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

Treehouse motel and treehouse-building school.

Featuring a casually threatening atmosphere along with dessert and coffee to die for.

This little slice of the Netherlands in the Pacific Northwest blooms in a rainbow of color each spring.

Nestled between a college and a golf course, the garden is home to more than 2,500 rhododendrons.

This unique library spans a mighty river.

A lush Seattle garden designed by the same landscape architects responsible for New York's Central Park.

A bust of the first president welcomes visitors to the only town in America called George, Washington.

This impressively large collection includes crackers shaped like Jimmy Carter, Mickey Mouse, and more.

The longest and widest floating bridge in the world.

A rare tour of a commercial jet assembly plant, held inside one of the largest buildings in the world.

People come from across the globe to swim in this lake believed to have healing properties.

This 50-ton ship on Orcas Island has never seen the ocean.

This century-old confectioner's outlet store was plucked right out of the Seattle World's Fair.

The spur that wouldn’t die.

A library of only unpublished manuscripts.

The Denny Substation has been called "the coolest substation in the world" and sits in a densely populated Seattle neighborhood.

Overlooking Puget Sound sits a garden with a Buddhist prayer wheel and an elaborate labyrinth.

Stones speckled along Harris Avenue reveal hidden nuggets of the past.

This Cold War siren is one off the last of its kind still standing with its immensely powerful original horn.

Always a new use for this old building.

This bridge provides safe passage for squirrels.

The world's largest egg has been cracked a number of times over the years but has been repeatedly replaced.