No doubt east coast pizza is good but....
No other pizza in the "world" can compete with Chicago's
Chicago style hot dogs, Italian beef places, etc.
Lot's to do and see downtown, world class art museum, museum of science and industry, shed aquarium, Adler planetarium, Field museum, House of Blues, Thriving Jazz and Blues bars everywhere. Take a architectural tour downtown!
If your coming from out of the country you MUST spend some time in a Jazz club, its americas gift to music!