This former hub for crafty philosophers was founded by a writer who died aboard the infamous RMS Lusitania.

A 19th-century architectural wonder designed by the "father of the skyscraper."

The seat of Buffalo government is a gorgeous Art Deco palace.

This unique crypt designed by Frank Lloyd Wright for his longtime friend was not completed in either man's lifetime.

One of Frank Lloyd Wright's greatest—and favorite—architectural masterpieces was almost lost.

This former coal gasification plant found a curious second life as a popular public park.

The longest and widest floating bridge in the world.

The tech giant built three enormous glass orbs in Seattle so employees could work inside a rainforest greenhouse.

The first North American landing spot for James Cook on his third voyage of discovery in the Pacific.

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

The eerie remnants of an ancient forest were hidden under the sand for centuries.

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

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

A Roman-style column in Oregon hides a spiral staircase inside.

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

Two massive rock outcroppings on the Oregon coastline.

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.

A logging-themed roadside restaurant surrounded by museum-quality machinery and artifacts from the industry's heyday.

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

Despite a legend that says this highest peak in Oregon was climbed in high heels scores of people have died on its slopes.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

Hollowed out cedar log tubs set in an ancient towering forest.

You might know it as the Overlook Hotel, but the inside is not going to be familiar.