This is a slightly off-topic post but exceptions must be made for the spectacular.

There’s a wonderful museum in Spain called the Thyssen-Bornemisza Museo Nacional. Today I was looking at a painting on their website and found something fascinating! It’s an in-depth study of emotional reactions people had to 125 pieces of famous artwork. The study used biometric tools to identify participants’ emotions (Joy, Fear, Surprise, etc.) when they looked at the picture.

When you click any of the multi-colored bars, a painting opens. You can see how the participants reacted to it emotionally and how strong their emotion was.
Directly beneath each painting, look at the Emotional Heat Map to see what part of the painting elicited the strong emotion. The Attention Map shows where participants’ eyes focused and the way their eyes traveled across the painting to focus.
I highly recommend visiting their site if you’re interested!