Allowing humans and fish alike to migrate from freshwater to saltwater and back again.

Native American burial mounds? Giant gopher dens? No one knows what created the Mima Mounds.

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

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

A beautiful footbridge with over 2,000 glass sculptures along the walls and ceiling.

Celebrate Earth Day with a menagerie of vibrant, artistic animal costumes.

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

A large wind turbine installation in central Washington State is home to an extensive set of interpretive exhibits.

Slip in a slide while waiting for the ferry.

This dilapidated ship carcass covered in trees is a striking sight.

This historic bridge connects Whidbey Island to Fidalgo Island across whirlpool-filled waters.

This statue and its surrounding plaques tells the story of Ko-kwal-alwoot and the kinship between the Samish people and the sea.

One of the best views of the city is tucked away at the top of a water tower.

The longest and widest floating bridge in the world.

This three-story antique market and curiosity emporium claims to be "the largest singly owned antique shop in the Pacific Northwest."

The oldest remaining building in Tacoma was once the home of the "oldest bell tower" in America.

This municipal sundial has been keeping time along Tacoma's Commencement Bay since 1978.

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

A massive environmental project transformed this former smelter into a beautiful park.

Spanning an elevation of 160 feet and containing 388 steps, this is Seattle's longest staircase.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

One of the most spectacular bridges in Spain spans a narrow chasm that divides the city of Ronda.

Rare karst landscape eroded from a flat seabed.

The colorful stairs are made with marble from the world's major quarries.