Day 3: Springfield, MO to Oklahoma City, OK
Read MoreRed's Giant Hamburg on Route 66 in Springfield, Missouri
Red's Giant Hamburg was a business on the west end of Route 66 in Springfield, Missouri, which is believed to have been the world's first drive-through restaurant. The business' name was supposed to be "Red's Giant Hamburger", but owner Sheldon "Red" Chaney mis-measured the special-ordered T-shaped sign. So, with his newly purchased sign too small to fit, he simply had the bottom of the metal sign cut off. Thus he removed the "er" in the word "hamburger", creating a business legend. Red and his wife Julia served their giant hamburgers and homemade root beer from 1947 until they retired in 1984. The restaurant was torn down in 1997. In 2013, the City of Springfield raised $15,000 through a crowd-sourcing campaign to recreate Red's legendary sign.