I'm not really big into art but I do enjoy listening to some of the story's behind some of the paintings and the artists.
One picture that I've seen in person is this one - that bottom bit looks weird to say the least doesn't it?
It is called The Ambassadors and hangs in the National Gallery in London and was painted nearly 500 years ago in 1531 (the year Queen Elizabeth I was born) by Hans Holbein.
This is what the story is behind the strange skull, which is a sort of optical illusion and appears to be quite a normal picture of one when viewed at a certain angle, which I've done myself.
The most notable and famous of Holbein's symbols in the work is the distorted skull which is placed in the bottom center of the composition. The skull, rendered in anamorphic perspective, another invention of the Early Renaissance, is meant to be a visual puzzle as the viewer must approach the painting from high on the right side, or low on the left side, to see the form as an accurate rendering of a human skull. While the skull is evidently intended as a vanitas or memento mori, it is unclear why Holbein gave it such prominence in this painting. One possibility is that this painting represents three levels: the heavens (as portrayed by the astrolabe and other objects on the upper shelf), the living world (as evidenced by books and a musical instrument on the lower shelf), and death (signified by the skull). It has also been hypothesized that the painting is meant to hang in a stairwell, so that persons walking up the stairs and passing the painting on their left would be startled by the appearance of the skull. A further possibility is that Holbein simply wished to show off his ability with the technique in order to secure future commissions.[8] Artists often incorporated skulls as a reminder of mortality. Holbein may have intended the skulls (one as a gray slash and the other as a medallion on Jean de Dinteville's hat) and the crucifix in the upper left corner to encourage contemplation of one's impending death and the resurrection
https://en.wikipedia.org/wiki/The_Ambassadors_(Holbein)Once you get to understand that often some pictures actually tell a story than are simply meant to be just eye candy, then I find them to be that much more interesting.
Just my personal view anyway.