a2geeks is hosting a tour of the WCBN-FM control room on Wednesday, November 14, 2012. Tours start at 5:30p, 6:30p, and 7:30p, and you should RSVP for your space. (I'll be at the 5:30pm tour.)
WCBN is an amazing student-run radio station at the University of Michigan, founded in 1972 and broadcasting from the basement of the Student Activities Building. Listen live to WCBN at 88.3 FM (all the way to the left on your dial) or online. You might need to go online to enjoy it if you live outside the transmission area - this map from the FCC shows an approximate radius of where the station can best be enjoyed, though I'm sure I've heard it from further away.
Map credit: FCC station database for WCBN-FM