What is Salt Lake City known for? I have one day there!?

My hubby and I will be in SLC for one day, staying near the airport and leaving early the next a.m. (in early Jan.)
Can someone reccomend a great place to eat or maybe something cool to see while we are there?
Update: uh ok enough about the MORMONS, I already knew that.....
also, re: skiing, we are alreadydoing that elsewhere, SLC will be out last stop before home..........Thanks!
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