A fun site with a variety of learning games with a Christmas theme. http://www.northpole.com/kitchen
Learn about other countries. http://online.culturegrams.com/
Time for kids - International Week http://www.timeforkids.com/TFK/kids/hh/goplaces.
Chicago Fire 1871
My Chicago
Great Chicago Stories
Chicago history from a kids point of view
Building the Windy City
City of Chicago