Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.

The world's largest collection of fine-scale miniatures and one the nation's largest collections of antique toys.

A 20-foot-tall egg painted in a traditional Czech patterns by the Czech community in Wilson, Kansas.

This quaint museum lets you take a ride on its antique carousels.

The grandson of a Kiowa chief created what has become the iconic symbol of a city on the Plains.

A unique attraction and museum dedicated to exploring iconic roadside structures.

Color-coded signs direct drivers on a network of routes designed to avoid Pittsburgh traffic.

Once used to screen films for theater owners to rent, this historic building is now a start up hub.

A private residence adorned with a gorgeous mural dedicated to the buzzing insect.

The largest clock face in the United States is twice the size of Big Ben and infinitely more ad-sponsored.

Pittsburgh's literal underground railroad.

A view-altering observatory at the University of Texas.

Constructed in the 1920s, this former pencil factory is now an office building.

An 1883 schoolhouse now home to collective of artists.

Thriving meadows span a rooftop in one of Brooklyn's most heavily industrialized neighborhoods.

The one-stop shop for all of your superhero (or evil arch-nemesis) needs.

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

One of Cincinnati's greatest fighters once trained at a now defunct gym in this Over-The-Rhine neighborhood.

Remnants of 19th century vigilante justice.

All that remains of a gigantic earth-moving machine.

Bison, America's national mammal, are staging a slow comeback in Ohio's prairie parkland.

A fiberglass jungle, deep in the wilds of the Cleveland suburbs.

This lovely university observatory continues to sit abandoned since its potential savior was sent to jail for fraud.

It may appear to be a fancy junk yard, but each item has a story to tell and a lesson to impart.