Los Angeles Hound arriving ORD second Thursday of December at 5:00 p.m. and leaving from ORD early morning the following day. Want to enjoy the town. I plan on taking the "L to the city center and back. What would suggest that I do? I like ethnic low brow places with lots of character. Also fun drinking spots as well. I will not have a hotel, so is it possible to pull an all nighter ( any places to rest? ) will probably head back to the Airport around 3 or 4 am ( Is the "L" safe at that time ) Just looking for tips, suggestions and whatever from my fellow Hounds in Chicago. Thanks in advance.