The decorations were inspired by an unlikely missing treasure.

This unique Seattle structure was designed to be the greenest commercial building on the planet.

This remarkable collection devoted to the study of fish includes 1 million preserved specimens from all around the world.

In the middle of a busy airport, a statue honoring the astronaut who told Houston that Apollo 13 had a problem.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

While most of the games in this arcade take quarters, that would have been a small fortune when they were made.

There are eight natural springs around town, each with a slightly different taste.

In addition to over 80 vehicles on display covering over 100 years of motorcycle history, this free museum focuses on the people who ride and love these bikes.

A sliver of nostalgia in Seattle's Viretta Park.

Native American burial mounds? Giant gopher dens? No one knows what created the Mima Mounds.

The founder of a utopian religious community based on the Golden Rule laid his son to rest on this grassy hill.

A giant sculpture dedicated to a staple of South Bend food culture.

A 1,000 pound brass bell commemorates a time when this small maritime neighborhood was actually its own separate city.

A commemorative mural in this tiny Ballard park honors the neighborhood's rich Scandinavian ties, particularly with Seattle's Norwegian sister city Bergen.

Eastern zen meets Western grit in these four little trees growing out of a rock on Lake Tahoe’s Nevada shore.

One woman's Viking Castle on Lake Tahoe.

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

This impressively large collection includes crackers shaped like Jimmy Carter, Mickey Mouse, and more.

Overlooking Puget Sound sits a garden with a Buddhist prayer wheel and an elaborate labyrinth.

This monument remembers the first Japanese Americans forcibly relocated during World War II.

Mysterious ancient petroglyphs carved on a glacial boulder at the tip of Bainbridge Island.

The boulder is a landmark, public art, and an icon.

This 18-foot-tall public art installation is another of sculptor Thomas Dambo's trolls.