The Lake Shore Limited and the Southwest Chief both have termini at Chicago's Union Station, so both coming and going we had some hours to explore the downtown area while we waited for the latter train to board.
There's a lot to see in downtown Chicago. To start with, Union Station is a big, bustling place for people watching (on the return trip we chatted with some zombies from a 5000-zombie flash mob that had just finished) and some fine Art Deco architecture. Just outside the door you can strain your neck looking up at the Willis Tower (formerly the Sears Tower) just across the canal. And about a 15 minute walk to the east is a string of parks and museums along the shore of Lake Michigan.
After a brisk walk to stretch our legs and work up an appetite, we had a very nice lunch at Russian Tea Time - a fancy establishment with a beautiful collection of samovars and an extensive bar. I could not resist trying the trio of house-infused vodkas (coriander, black currant, and lime) with a dish of pickled herring and some black bread.
Lorna was able to resist that gustatory delight and contented herself with a stuffed chicken breast and a Coke.