We roll into Oklahoma City and explore the history of Broadway Avenue—this is Automobile Alley. Back in 1903, a strange sight chugged along the muddy city roads: the "horseless carriage." It heralded the coming automotive age, with entrepreneurs soon racing to showcase the latest cars in the heart of the city. From its heyday in 1921 to the street's grand refurbishment at the turn of the century, this story drives home the spirit of Oklahoma.