Book your tickets online for the top things to do in Chicago, Illinois on TripAdvisor: See 309,653 traveller reviews and photos of Chicago tourist attractions. Find what to do today, this weekend, or in June. We have reviews of the best places to see in Chicago. Visit top-rated & must-see attractions. Scroll through the gallery below to find out TripAdvisor’s picks for best airlines in the world. More: These are…