The wooden airship was the largest flying boat ever built.

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

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

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

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

Entering this curiosity shop is like stepping into a mad scientist's lab.

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.

Is this the most Portland place ever?

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

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

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

Only known mainland rookery of the threatened Stellar sea lion.

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.

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

A beautiful 62-acre Catholic shrine and botanical garden.

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

Once a private collection, now the only museum of arms and armor in the Western Hemisphere - CLOSED.

Once the largest gravity dam in the world.

A grave surprise in the downtown area of New England's second-largest city.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

In 1958, an MIT fraternity pledge laid down on this bridge and instituted a new, unique unit of measurement.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

A spooky and decrepit mental health facility is slowly being replaced with newer digs.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.