Welcome to World-Building Wednesday, Shadows of St. Louis!

Two weeks ago I floated the idea of a weekly thread to develop cities that don't have enough detail, and one of the suggestions was St. Louis. With its role as "Gateway to the West," it seems like a great city to start with, so let's see what we've got!

We could use a city map divided into districts, and lesser-known details from people that have lived there are most welcome. Also feel free to throw in suggestions for cities to be covered in future weeks. Don't be shy voting for cities in Europe, the U.K., Canada, and Central/ South America, I know we have some shadowredditors from those regions to give us the inside scoop.