Railway Transportation is the easiest way of transport next to the Airlines, since you can get trains at any time and also with affordable costs. There are number of railway service providers in the USA, to know the service, check the USA -- (America @ Travel Notes) in the following link:

http://www.travelnotes.org/Travel/byrail.htm

Amtrak is a national train service serving Chicago and most of the continental United States. Trains depart primarily from the two major Chicago train stations, Union Station and Northwestern Station. Chicago comes under the Midwest regions of the Amtrak.

To know more about the facilities, click the following link:

http://www.chicagotraveler.com/pdfs/Chicago_Heart_cut.pdf

When you are in Chicago with family groups I am sure there will at least a bunch of kids in that group. So, kids in the group surely need their space of enjoyment. The place should be very safe and exiting for kids.

While searching for such a place in Chicago, you will always end up with indoor gaming, which is the best place to get in with kids group. The place is for kids but also for adults, to relax and go back to their childhood days.

Chicago indoor racing is the best place to drive in:

http://www.chicagoindoorracing.com/

Enjoy your racing champs having fun in their racing cars.