Not-so-fearsome tiny trolls live under this wooden train trestle in Portland.

A collection of colorful dinosaurs hidden in an actual rainforest.

This Oregon farm is dedicated to teaching people the professional art of tree climbing.

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

On the Oregon coast there is a natural hole that seems to be draining the sea.

New Plymouth, Idaho is the only U-shaped town in the United States.

A museum dedicated to the history and art of staying clean.

A legal loophole makes it possible to get away with murder within this 50-square-mile section of Yellowstone.

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

This museum glorifies the humble potato.

The rocks of a certain area of Butte, Montana give off a musical ring when hit.

New fungal and bacterial species call this deadly lake home.

A monument to the egos of two railroad magnates that fell into decline along with their careers.

Miraculous tree that seems to sprout out of solid rock.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

A beautiful geyser under environmental threat.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

Tracks near this Texas nature site were once thought to support the Creationist belief that man and dino coexisted.

The summer home of the largest colony of bats in the world.

A grove of colossal man-made flowers built to collect the sun's rays.

This unique structure in suburban Austin is made up entirely of other people's castaways, and constantly changing.

A bizarre house filled with an astounding array of collections.