Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

These chunky stone towers out in Lake Michigan are the key to Chicago’s drinking water.

Largest man-made excavation on earth!

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Despite its name, this route in southern Utah offers a heavenly day trip.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

This geothermal hot spring hides beneath a slowly growing mineral dome.

A towering tribute to decisiveness stands on the spot where Brigham Young and his followers decided that this must be the place.

A hidden garden of stones engraved with scriptures, a Joseph Smith Sphinx, all carved by one man.

Visitors to this library are in for a real-world education in modernist architecture.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

One woman's Viking Castle on Lake Tahoe.

This giant temperature attraction created some giant electric bills.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

The historic bar where local ship captains, traders, and gold miners would come together to do business a century ago.

An extraordinary mixture of natural beauty and man-made phenomena.

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

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

The wooden airship was the largest flying boat ever built.

Home of Howard Hughes' Spruce Goose.

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

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

10,000 flowered plants bloom in the City of Roses.