Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

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

The largest island on the great salt lake is home to curious creatures and strange stories.

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

One person's lost luggage is another person's treasure.

South Dakota's oldest operating brewery is housed inside a historic firehouse.

Every president in history is immortalized in bronze in downtown Rapid City.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

This missionary's legacy looms large over the Upper Peninsula of Michigan—literally.

Egyptian Revival obelisks still rise over the old mine shafts.

"The Most Boring Road in the State."

Watch the ships come in on Michigan's 210 ft. high observation deck in Sault Ste. Marie.

As its grandiose name implies, this wooden dome is unsurpassed in size.

Large one-man sculpture park in Michigan.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

One lonely, modern pyramid has gone from corporate think tank to deserted boondoggle.

World's largest Christmas store.

What was once the largest NFL stadium.

A sealed test tube said to hold Thomas Edison's dying breath was given to the inventor's friend and mentee, Henry Ford.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

Strange physical sensations and optical contradictions keep visitors coming back for more.

Island where motor vehicles are banned -- home to the only carless highway in the United States.