The second tallest railway trestle bridge in America.

This stoic, if derpy, giant stands as a monument to Oregon's statehood and the novelty culture of yesteryear.

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.

The park preserves a single, rare species of carnivorous plant that spells doom for unsuspecting insects.

This abandoned bridge to nowhere stands secluded in the woods of a Cleveland suburb.

A grove of "candelabra redwoods" deep in California's Lost Coast.

This massive redwood tree has a hole in the base big enough to drive through.

An optical illusion found amid a logged redwood forest.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

Humboldt's human-powered sculptures race across land and sea for days on end in a wacky quest for dominance.

Commonly referred to as the most photographed Victorian home in the United States.

A raised boardwalk winds through a thicket of stunted, century-old trees no more than nine feet tall.

The lighthouse central to the 1980s horror classic "The Fog" is, in fact, located in one of the foggiest areas of the Pacific Coast.

This hidden fire lookout offers spectacular views of Sequoia National Park.

Quite simply the largest tree in the world (by volume).

These millipedes glow not out of attraction, but as a not-too-subtle warning.

A vertically floating hemlock controls the waves and weather at Crater Lake.

This natural marble cave is one of only five national monuments in Oregon.

This naturally heated mountainous creek has created a group of neon blue pools of potentially deadly boiling water.

Eons old volcanic activity created one of the most stunning rock formations in the United States.

Towering basalt columns, a creation of fire and ice.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

A century-old network of freight tunnels underneath the city's historic business district.

Chicago's largest cemetery is full of beautiful Victorian monuments and more than a few ghost stories.