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.

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

Downtown Minneapolis mixed art and function by turning some of their sewer covers into works of art.

Every equinox this Maya pyramid puts on a spooky ancient light show.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A fine, large-aperture telescope available for public use.

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

Despite a legend that says this highest peak in Oregon was climbed in high heels, scores of people have died on its slopes.

The world's smallest park was dedicated in 1948 as the only colony for leprechauns west of Ireland.

This sandstone mansion was the home of two of Oregon's most important pioneers.

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.

This charmingly homemade amusement park has been growing for 40 years.

The first North American landing spot for James Cook on his third voyage of discovery in the Pacific.

The largest wooden building in the world now houses a fascinating collection of aircraft.

100-year-old shipwreck you can walk up to at low tide.

A display of magnificent stained glass windows is the first exhibit of its kind.

The center of the only hemisphere that awards visitors with a commemorative coin.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

Home to the Amorphophallus titanum "Corpse Flower," which is among the largest flowers in the world and also smells powerfully of rotting flesh when in bloom.

A toweringly silly piece of modern art has been delighting locals since the 1980s.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

You might know it as the Overlook Hotel, but the inside is not going to be familiar.

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