Useless fact #407 --> "ll" in French = "yuh" in English. So it's sort of Luh Se(l)yeeay. Of course, you're half likely to get a CM who would respond to that with "Uh, where???" so feel free to call it "That Canada Cellar Place."
[Note to the humour impaired - I am not suggesting that CMs are stupid! It's a joke! ]
Um, not to get into a linguistic argument, but double L in French sounds like an L, just like in English, unless it is preceded by an "i" such as "bille" in which case it sounds like a "y" or a long E in English. The pronunciation is "sel-y-ay" as Baby Mo has already said.
Double L in Spanish is pronounced as the Y in yes.
I just figured I'd start off sounding like an educated person, so when I spill my food all over myself, they'll think it was a rare, random occurrence.