This charmingly homemade amusement park has been growing for 40 years.

A controversial memorial at the place where Captain Cook met his violent end.

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

The second largest waterfall by volume in the U.S., Willamette Falls is outdone only by Niagara in the amount of water that is pushed northward.

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

Definitely not a clown bar.

The U.S. Navy's last diesel-electric submarine rests half-submerged in the middle of Portland.

A sculpture of a salmon swimming through a brick building.

Portlandia is the second-largest copper repoussé statue in the United States.

The world's smallest park was dedicated in 1948 as the only colony for leprechauns west of Ireland.

The magic's in the hole!

A heavenly experience, right here on Terra Firma.

100-year-old shipwreck you can walk up to at low tide.

A massive sea stack famous for its appearance in The Goonies.

Mountain known by the Tillamook Tribe as "the place of the supreme deity."

Ride a mechanical corn dog at the alleged birthplace of America's favorite deep-fried wiener.

Two massive rock outcroppings on the Oregon coastline.

No one knows how this Pacific Northwest spruce tree came to have so many trunks.

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

The largest wooden building in the world now houses a fascinating collection of aircraft.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.