Audio Shows - CES and what else?

I know there is the CES, hosted in Jan in Las Vegas. I have never been to CES but would like to know where other popular Audio shows are hosted & if the month / place is same every year. The only AV event that I had been to was when I was in Detroit - The Audio Karma event. It wasn't even worth the free pizza they gave.

I know there is one in Denver/Colorado and one in NY but don't know any other details. Thanks in advance.