What do you know! - Tradução em português

Hi everyone, this is my first time asking something here, and I'd like to know what "What do you know!" means, I kinda know its meaning in English, but what I really wanted to know is its translation in Portuguese. I mean, I wanted to know if there's an idiom similar to this one in Portuguese that conveys the same meaning of this idiom.

I'm sorry if I made any mistakes, and thanks in advance.