A giant milk bottle from the 1930s beckons drivers to this diner.

This inanimate goat created by the "welding nun" has been helping to clean up the city of Spokane for more than 40 years.

Protected from the elements, these Native American rock paintings have survived approximately 250 years.

An annual celebration of the infamous, unsolved skyjacking.

The building features one of the last remaining free-floating spiral grand staircases in the U.S.

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

This bridge provides safe passage for squirrels.

"Enter and be entertained or annoyed by Dada in Walla Walla."

Perhaps the world's only gas station inspired by a political scandal.

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

The century-old remains of an abandoned farm town in eastern Washington.

One artist's yard is full of shining, whirling kinetic sculptures that look like pure steel psychedelia.

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

In Washington's Yakima Valley lies a town "where dinosaurs roam."

A nearly abandoned 19th-century town on the Palouse.

This large Sitka spruce that appears to be floating in mid-air, has defied logic for years.

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.

Home of Jake the Alligator Man, the mummified remains of a cigar smoking, cross-dressing celebrity of the Northwestern coast.

Four abandoned towers hidden above the Douglas fir forest in Washington.

A whimsical menagerie of devils, krampuses, satyrs, and other horned creatures.

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

Site of the greatest known waterfall that ever existed.

Legend says that these tall basalt pillars are the petrified wives of a trickster god.