Three full days. I will be landing on the 24th late and going right to bed, with the 25/26/27 all for touring, departing 28. I am likely to spend 26th at Teotihuacan. I will peruse the thread. Looking for major "must see" monuments, museums, etc..., great informal places to try Mexican food and especially and street food that won't give an American a bad stomach and some recos for bars or lively nightlife areas would be good as well. Thanks, will read the link!