 Waco is also home to the Dr Pepper Museum, housed in the 1906 building that was the first stand-alone facility used to bottle Dr Pepper.According to local lore, the first sustained flight did not occur in Kitty Hawk, North Carolina, but just outside Tokio (a small community in McLennan County) by a man flying a gyrocopter.During World War I, McLennan County was home to at least one military airfield, Rich Field.