Though there are many ways of orientation available for tourists in Chicago but the best one by par is the internet simply because it costs nothing from your pocket.

Even if you choose to buy a guide book or an orientation map of Chicago from a government institute like the Chicago Tourism Department you will have to spend some money and more than that it might often be the case that it would not provide you with the exact information you need.

This difficulty is very effectively overcome by the internet as it provides you the exact piece of information you need without any cost.

There are many websites that provide you tourist information about Chicago. Official sites include the Illinois Tourism Department site, the US tourist Survey Organization and the Chicago Mapping Foundation.

Google Maps are also a useful resource for the same purpose.

http://www.explorechicago.org/city/en.html

http://www.chicagotraveler.com/

http://www.choosechicago.com/Pages/default.aspx

Map gives owl service or overnight service detail for entire CTA, PACE and METRA system and best suited for night travelers. Information covers details about:

- Fare structure

- Transit cards

- Chicago card / Chicago card plus

- Frequency

- Passes

- Safety of the passenger

Chicago Transit Authority night Owl service is a special network of Bus and rail system..Two rail lines and 19 bus routes are dedicated for night owl service that starts from mid night to 5 am.

This service allows riders to travel after mid night and can take advantage of complete system.

http://www.sfmission.com/maps/missionnightowlmap.htm