Downtown Chicago on a Saturday Night is always exciting. People all over it can be overwhelming. The way I love to capture the city a lot is through the use of HDR, here a composite of 3 shots, -2,0,+2.
Nikon D3000 with a Sigma 10-20mm f4-5.6 attached. Had my camera on a Manfrotto Tripod with a Calumet ball head. The photos were merged with Photomatix.