The 80-foot tire that looms over Michigan's I-94 was once a Ferris wheel in the New York World Fair.

Two dozen rescued bears roam (mostly) free at the largest bear ranch in the U.S.

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

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

Turnip-shaped island just off the Michigan shore in Lake Huron.

George Martin's Caribbean recording studio now rots within the shadow of an active volcano.

Designed by Horace Trumbauer in 1893, this Gothic-style castle is now a home for academics.

Once the extravagant escape of the Ford family, this enigmatic ruin now stands as a haunting reminder of its former glory.

One of the oldest surviving bars in the United States, located at the site of the last skirmish of the American Revolution.

This collection of vintage signs reflects the long and colorful history of this Arizona town.

Bootleggers ran booze beneath this building before (and after) Route 66 appeared beside it.

This rustic cabin, outfitted with gun slits, was once home to John D. Tewksbury, patriarch of the bloodiest family feud in American history.

Inside this store, a mysterious statue draws visitors from the world over.

There's a crumbling old mansion inside the Smithsonian National Zoo.

Take a monster truck tour around an ostrich farm in the middle of the desert.

These free-roaming horses were once destined to disappear from the land.

Open since 1938, this diner has kept its fountain, malt machine, and all the gum that greasers left beneath its counter.

An out of this world experience.

This little barrel-shaped cottage by Lake Superior was once a cartoonist's summer retreat.

Covering 37 subterranean acres, this Armillaria gallic is a famous fungus with its own festival.

Large one-man sculpture park in Michigan.

This lone tree and dramatic sandstone outcropping are so beloved by Michiganders they can be found on one of the state’s coins.

World's largest pet casket company brings in up to $5 million per year in revenue.

This 19th-century ghost town offers a stunning view of Lake Michigan and a journey through the region's industrial past.