An electrifying collection of gadgets and literature from the 16th through 20th centuries.

This 22-acre botanical garden is home to the largest collection of rhododendrons in the world.

An exercise in patience and imagination, where Mother Earth turned common stuff into precious hidden treasures.

A cave interior in the shape of the ancient rhinoceros, created by lava cooling around its carcass.

A fine, large-aperture telescope available for public use.

Cave carved out of a huge snow drift collapsed killing one and injuring five in July 2015.

Browse through roughly 130,000 titles in the world's largest independent video rental store.

Site of the greatest known waterfall that ever existed.

A young botanist's horticultural vision realized through a lifetime of planting, tending, and collecting seeds.

This remarkable collection devoted to the study of fish includes 1 million preserved specimens from all around the world.

Continuing a tradition of movie magic on the site of America’s oldest continually operating movie theatre.

Local legend has it that an old, decaying staircase outside this cemetery is haunted by dozens of ghosts.

Bonsai trees that are up to a thousand years old.

A rotting tree in the middle of Seattle doubles as an elaborately-controlled art piece.

One small town in the Pacific Northwest transformed itself into a Bavarian-themed tourist destination.

An enclosed rotunda at the Henry Art Gallery in which viewers can look up and see the uninterrupted sky.

The illuminated falls are a gem in North Cascades National Park.

An obscure waterfall that looks like something out of a fantasy novel.

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

A tiny red pebble marks what may be the quietest outdoor spot in the United States.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

A huge musical sculpture and other art installations on the National Oceanic and Atmospheric Administration grounds.