Build inside what used to be a restaurant, this is easily the most interesting store in Milwaukee. Of course it has wooden floors and brick walls. But if you walk towards the back, you will notice a strange thick metal door that appears to lead nowhere. The door does not swing out, but rather slides upward at an angle along the wall. Very nifty! Another door in a nook reads "Milwaukee Letter Service". Back in front, the fireplace is no surprise--but the large metal Starbucks siren sure is!