I see that this group has chosen the superstar MONA LISA as a symbol of art.
I was lucky enough to see her in 1961 (I'm an old man) in a room at the Louvre before the transformations. We were about ten visitors! I saw her again afterward, but there were several hundred of us jostling around.
In fact, I know another portrait of a young woman by Leonardo Da Vinci that I prefer.
Lady with an Ermine, around 1489.
Portrait of Cecilia Gallerani
At Czartoryski Museum, Kraków, Poland