2. Ohio has the 10th largest highway network in the United States. It's within a one-day drive of half of North America's population.
4. Columbus, the capital, is near the geographic center of the (kind of) heart-shaped state.
5. Although the state takes its name from the Ohio River, very little of the river is within the state's borders.
6. Ohio's flag is the only non-rectangular state flag. It's a forked pennant with a stylized buckeye. Sadly, we didn't see it flying in many places.