It's NEON times ten, it's three floors of go go bars and beer joints. If you're looking for a "show" try Angel Witch,..on the second floor.
First floor has bars named, Rainbow two, Playskool, and Pretty Girls Bar.
Second floor has the G.Spot Bar, avoid the Casanova bar. (unless you a lady boy bar)
Beer is overpriced, from 120 to 150 baht. (the same beer sells for 34 baht at 7/11)
But, your here for the sights and sounds right? All bars are free to get in.
Go look around,
Nana Plaza is Located off Sukhumvit on Soi 4.