Known as "The Dome" this is the world's largest open air geodesic dome.

The oldest remaining authentic Putt-Putt course that Donald Clayton created in Ohio.

All that remains of a gigantic earth-moving machine.

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

Abandoned since the 1950s, the streetcar lane beneath the heavily trafficked bridge lays empty and unused.

You can walk through the first Boeing Air Force One, which famously carried JFK's casket from Dallas back to D.C.

A gregarious Ohio resident has been building his whimsical temple to peace for decades.

There are more than 4 million bricks inside this unofficial Lego museum in a former middle school.

This magnificent Cincinnati graveyard is also a popular public park.

Deep scars on the earth left by the Ice Age.

This abandoned bridge to nowhere stands secluded in the woods of a Cleveland suburb.

Where beautiful signs live on forever.

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

The largest earthwork effigy in the world.

Take a drunken tour inside the world's largest known geode.

Old car parts and assorted materials get turned into one man's mechanical treasures on the side streets of Cleveland.

The heroic sled dog of the 1925 serum run is preserved in taxidermy.

The ruins of the suspension bridge hang over Kingsbury Run as a ghost of racial prejudice.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

A history of tragedy and a pile of eerie stories have contributed to this house's consistent ranking as one of the most haunted places in Ohio.

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

The angel of death appears to weep black tears at this grave marker.

Silent memorial, using bone conduction to take people back to the Dresden Bombing of 1945.

An abstract and eyecatching clock/fountain is the centerpiece of this little-known German city.