Camera Rotation

Hi everyone, need a little help.
I am working on a virtual museum project, when you click on a painting the camera goes in front of the painting then you can click on the next painting and the camera moves to the next.
The problem is that when with the mouse you turn to see the painting on the back and you click on it (means the mouse angle is 180 degrees) it goes to the painting keeping the angle same, means the camera stops looking opposite to the painting. How can I tell unreal to keep the camera looking at the target when moving towards it??
Thanks in advance