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

A popular place to pick up prehistoric coral fossils from the time when Michigan was an ocean.

The bones of an old zoo crumbling in the shadow of a new one.

A subterranean world of tunnels links several buildings of this rare 19th-century asylum.

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

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

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.

Hell on Earth is actually a small town in Michigan where anyone can be mayor for a day.

This freshwater spring fills with 10,000 gallons of water per minute.

At 207 feet, one of the world's longest continuous escalators.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

An exotic reptile facility showcasing some of the rarest, most venomous snakes in the world.

Andy Griffith's hometown has made itself up to look like the fictional town of Mayberry.

One of the best places to see feral Colonial Spanish Mustangs in the United States.

Garden dedicated to native carnivorous plants and site of huge flytrap heist.

A historic covered bridge, only one of two remaining in North Carolina.

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

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

Witnessing the might of this dessert-colored desert waterfall is a rare, powerful treat.

See massive fossils that are over 200 million years old in northeastern Arizona.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

Dramatic river bend surrounds a natural red-rocked pedestal.