Where can CNAs work?

hi. i was just wondering where exactly can cnas work..
i know they can work at nursing homes and hospitals, but can they work at any other medical places such as dentists and at vets?
i'm currently looking for a job, but i'm not sure where to look for...
only two nursing homes and two hospitals around my area..
i want to work at a hospital, but they want only cna 2, which i'm not.
please help..
thanks