In Grand Rapids, Michigan, a marker honors the creation story of a proud fictional culture.

At HopCat, a marker honors fictional creatures with the ability to travel the missing dimensions of Kcymaerxthaere.

A lovely hidden waterfall right off the highway is well worth a stop.

This solitary gravestone is separated from the rest in Appleton, explaining why local legends continue to surround it.

A metal ring in the middle of the road marks the exact spot where the Soviet satellite crash-landed in 1962.

This family driveway also serves as the highest point in Illinois.

The former home is said to be haunted by the ghosts of the beloved mayor and his wife who lived here.

This cave holds a surprisingly colorful variety of geological oddities.

A Michigan farm has hosted the fierce competition since 1974.

Robots, lasers, and whoopee cushions, oh my!

This monolithic statue was erected in honor of Chief Black Hawk (even if it wasn't made to look like him).

This deceivingly ordinary warehouse hides an enormous collection of pop culture treasures.

This baseball diamond was home to the Rockford Peaches, a team featured in the hit film "A League of Their Own."

The city of Rockford, Illinois is symbolically protected by a quartet of fittingly stony sentinels.

Legend says Dungeons and Dragons players can get their dice blessed at the creator of the game's memorial.

The birthplace of a titan of American cinema.

A onetime gangsters' hideaway where you can dine on steaks, fine wines, and cigars just like they once did.

It was originally part of a "terrible lizards" collection at the 1964 New York World’s Fair.

This historic hotel invented the chocolate brownie.

A theater sits abandoned on Roosevelt Road, once majestic in splendor, now majestic in decay.

The NBA player's elaborate former home is now a ghost of its old glory.

This historic Illinois "Muffler Man" has been converted from axe-touting lumberjack to rocket-wielding space ace.

This stunning gothic ruin was a casualty of the Indiana steel industry crash.

A sprawling outdoor museum filled with larger-than-life works of art.