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

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

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

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

An extraordinary mixture of natural beauty and man-made phenomena.

Home of Howard Hughes' Spruce Goose.

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

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.

Home to the only outdoor municipal elevator in the United States.

A heavenly experience, right here on Terra Firma.

A beautiful 62-acre Catholic shrine and botanical garden.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

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

This public art piece proves that in Portland even reporting the weather is a thing of whimsy.

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

Tens of thousands of tiny birds swarm into one school chimney every fall.

One of the largest Buddhist stupas in the world keeps an eye out in every direction.

Sacred Buddhist home of some spiritual monkeys.

Once an indicator of social class, the color blue has come to define this city on the edge of the Thar Desert.

More than half of this Indian palace is drowned but it looks all the more spectacular for it.

The world's second-largest sundial, made entirely out of stone.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

This Art Deco masterpiece has stood in for some of the most famous buildings in comic book history.

"Girl in a Wetsuit" is what happens when a sculptor has to find a way around a 100 year old copyright.