This frequently-photographed waterfall takes only a short hike to visit.

The longest continuous lava tube in Oregon.

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

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

The wooden airship was the largest flying boat ever built.

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

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

Few other hotels can rival the grandeur of the Castle in the Rockies.

A mysterious taxidermy man-beast of the seven seas.

The ruins of the "20-year town" lay out among the mountains of Alberta.

The tiny church offers succor to travelers driving by, but only eight at a time.

These memorials built by an eccentric bachelor on the side of Interstate 5 cause both wonder and traffic accidents.

One small town in the Pacific Northwest transformed itself into a Bavarian-themed tourist destination.

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

A stone pillar commemorates the surrender of the extraordinary Apache leader.

The fifth-longest natural arch in the world, and the longest outside China.

Few things look more out of place than the electric blue ponds in the reddish-brown desert of Utah.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

This quirky hot springs town known to locals as "T or C" was named after a radio show.