Louisiana’s Most Pristine Street Belongs to Breaux Bridge, Finds Survey of Travelers.Natchitoches was No. 62 on a list of “Louisiana’s Most Pristine Streetss.”America is full of well-known streets that are rich in character but are perhaps a bit on the rougher side.Take Bourbon Street in New Orleans, for example. It’s famous for its vibrant nightlife and Mardi Gra...