Just in time for the holidays, Chicago Greeter is teaming up with the Greater North Michigan Avenue Association to present FREE, informal, one-hour walking tours of the Mag Mile and the surrounding area. Get an “insider’s orientation” to landmarks like the John Hancock Building and the former Playboy Mansion, historic hotels and cathedrals and the best of holiday decorations and shopping. Every Friday, Saturday, and Sunday 10 a.m.-4 p.m. (last tour departs at 3 p.m.) Begins Friday, November 12 and running through February. Where: Water Works Visitor Information Center Historic Pumping Station 163 E. Pearson (at Michigan Avenue)