Ancient petroglyphs discovered only after a massive fire swept across Michigan in the 1880s.

A place for ship-lovers to watch the passage of freighters traversing the Great Lakes while learning about their history.

See prehistoric footprints, plus two complete mastodon skeletons.

A physical reminder of Earth's ancient past, this rock results from the photosynthetic processes of some of the oldest forms of life.

The city is full of whimsical portals to another world.

Largest tulip festival in America, includes fireworks, a parade, and a carnival.

A memorial to the Potawatomi chief who allegedly ran nearly 150 miles to alert settlers of an impending attack.

The largest ancient burial mound in Ohio.

A castle built by an eccentric medieval enthusiast in rural Ohio.

Hidden on two floors of downtown building, the library has an incredible deal on rent.

An art deco ice cream shop covered in vintage train station tiles.

Where beautiful signs live on forever.

This tower-tomb honors a president who only held office for a little over a month but dedicated his life to his country.

This whimsical park encourages its visitors and wildlife to roam on and around the various works of art.

Once adorning a New York skyscraper, these reclaimed ruins now haunt an Indiana park.

Walk in the footsteps of the famed astronaut at Purdue University.

The large rock formation where the Shawnee prophet Tenskwatawa stood and encouraged his warriors during the Battle of Tippecanoe.

As the glaciers retreated out of northern Wisconsin, this unique natural wonder was crafted.

The titular fictional logger only inhabits this otherwise historically focussed museum via a piece of fiberglass kitsch.

Small-town museum dedicated to outer space ... and bicycles.

Over thousands of years, this slot canyon was carved out of the bed of an ancient lake.

This unique zoo is the only place in the world where you can see all 15 species of crane.

"World's largest scrap metal sculpture" stands in an outdoor sculpture garden in the middle of Wisconsin.

A remnant of the last Ice Age, this lake is surrounded by fascinating rock formations.