The walls of America's oldest masonry fort famously "swallowed" cannonballs.

One man's ambition created this psychedelic log home.

The residents at this Yellowstone wildlife park will certify your cooler as "bear-proof."

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

An architect's childhood fantasy treehouse made real.

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.

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

This public art piece proves that in Portland even reporting the weather is a thing of whimsy.

A tribute to a unique bike race that takes place every year.

The magic's in the hole!

A sprawling cave network created by a lone lava tube.

A rugged lava field dotted with molds of the ancient pines that were growing when the volcano erupted.

The longest continuous lava tube in Oregon.

In this subterranean brick arcade, a small shop continues the ancient practice of bookbinding.

A walk through the historic city center, under the streets of Seattle.

This working class sculpture pounds his hammer all the livelong day.

Antiques shop filled with all manner of curious collectibles.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

An effigy of Vancouver's Gastown neighorhood's namesake.

This mundane shopping plaza is named after a gruesome piece of flotsam.

The colorful, smiling concrete silos of Vancouver.

Hoodoos, naturally eroded land formations, stand 20 feet tall in the Canadian badlands.

As if T-rex wasn't big enough, this Canadian monument is four times larger than the real thing.