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

Home of Howard Hughes' Spruce Goose.

The wooden airship was the largest flying boat ever built.

A sprawling cave network created by a lone lava tube.

A rugged lava field dotted with molds of the ancient pines that were growing when the volcano erupted.

This sandstone mansion was the home of two of Oregon's most important pioneers.

While it is not equipped to peer into outer space this observatory looks like it was built on the moon.

The world's last remaining store of its kind.

The longest continuous lava tube in Oregon.

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

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

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

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

The site of the Wellington avalanche, one of the America's worst railroad disasters.

A sacred lake composed of over 300 separate pools of highly concentrated minerals.

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

This stoic, if derpy, giant stands as a monument to Oregon's statehood and the novelty culture of yesteryear.

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

This smaller cousin of the Forbidden City has gone from ancestral sacrifice to tourist's whispers.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

This crumbling medieval basilica once attracted pilgrims by the thousands to collect a miraculous dust that formed above the saint's tomb.

This half-ton piece of the Alps sits at the base of the CN Tower.

Known as "Toronto's Flatiron."