Historic Milwaukee quite literally gets 150 buildings – big and small, new and old, landmarks and hidden gems – to open their doors to the city of Milwaukee for this adventure-minded early fall event. Guided tours are often times offered free of charge with no entry fee required – but if there is somewhere particularly interesting to you, check out the in-depth tours that are ticketed. Doors will be open from 10 a.m. to 5 p.m., so get out there and be a tourist in your hometown!