A volcanic fissure over two miles long and up to 70 feet deep.

Along the Outback Scenic Byway, adjacent to hot springs, this human-made geothermal feature takes unexplained breaks.

Oregon's only closed-basin hypersaline lake, an important stopover for migrating waterfowl, is in danger of drying up completely.

This extinct shield volcano is the lightning rod of the Cascades.

A tourist attraction founded around a slumping cabin.

Dozens of whimsical bear statues "hibernate" here during the winter months.

A Victorian-style home known as the “Castle on the Hill.”

A haven for wildlife amid the farmlands and development of the Willamette River Valley.

Now a secluded county park, this site was once a "health tourism" destination for wealthy Oregonians.

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

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

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

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

Two massive rock outcroppings on the Oregon coastline.

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

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

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

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

Thousands of people walk over this fantastic work of art every day, but how many notice it?

A museum within a museum, devoted to history's most questionable medical devices.

Sweet Willy, at 30 feet tall, is the world's biggest beagle.

The steepest tramway in North America provides stunning views of the out-of-the-way Wallowa Mountains in northeastern Oregon.

This massive mushroom has spent centuries eating its way across a huge swath of Oregon.

The statue honors the booming birds Rothsay, Minnesota, is famous for.