Sweet Willy, at 30 feet tall, is the world's biggest beagle.

Boise State's stadium was the first non-green football field in the world.

The last physical evidence of the Lewis and Clark trail is one of their autographs etched into this giant rock.

The rocks of a certain area of Butte, Montana give off a musical ring when hit.

This large artificial waterfall in Washington state was merely an incidental byproduct of a technological megaproject.

This long, dark tunnel is open to hikers, but those without lights are known to get confused even on the straight path.

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

The only house in Oregon designed by the famous architect, Frank Lloyd Wright.

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

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

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

No two pieces are exactly the same at Portland's hippo-themed hardware store.

Taking the 3D art experience far beyond blue and red glasses.

This Elizabethan hedge maze is one of only six in North America.

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

A colorful hidden village of the fair folk.

This tree has witnessed nearly 1,000 years of history.

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

A crumbling cliffside ruin hidden in the woods.

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

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

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

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

An operating lighthouse from the 1860s.