26 Hours

Corey writes:

We've got our visas! After an early setback with our visa applications, we got it right the second time around. And right after that, CUSO-VSO booked our flights to India. 26 hours. That's how long it will take us to get from Detroit to New Delhi. I'm not complaining; we've waited a long and worked very hard to get on that flight, so 26 hours seems pretty short in comparison. Also, we'll have 7 hours to kill in Chicago. We're totally going to leave the airport and venture into the city. What should we do? Leave suggestions in the comments.