This great stone guardian of the forest is a relic from the land's volatile volcanic past.

A sprawling cave network created by a lone lava tube.

This nature center has one of the largest collections of native raptors in the Pacific Northwest.

Massive crater in central Oregon.

A sculpture of a salmon swimming through a brick building.

This lake in the Cascades lives up to its name, disappearing down a hole every spring.

This comprehensive collection features Native American artifacts dating back centuries.

The largest and most well-preserved petroglyph site in the Verde Valley.

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

A piece of Seattle’s historic Chinatown preserved inside a modern museum.

Here lies Lilly E. Gray, an alleged "victim of the beast," but the reason long remained a mystery.

A scenic ravine with an astounding collection of rock art created by the Indigenous people of the Great Plains.

Modeled after a famous church in Vienna, Austria—but in Helena, Montana.

This off-the-beaten-path abandoned town is a relic of Montana's silver mining boom.

This town is home to the world’s largest arch constructed entirely of elk antlers.

Around half a million years ago, these magnificent columnar basalt cliffs were formed from cooling lava.

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

A beautiful geyser under environmental threat.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

The unusual patterns in this rock formation result from two distinct modes of weathering.

Erosion and various mineral deposits give this striking canyon its distinct color and soft appearance.

An Ancestral Puebloan ruin that appears to burst into flames in the sunlight.

This granite monument at the site of an ill-conceived tourist attraction is built from the same stone as the Mormon Temple.

A tunnel with windows, so you don't miss out on the impressive views.