3. This Embarrassing Art Error
In the episode titled Children of the Damned, in the first season, Damon reminisces about how he taught Katherine how to be a vampire in 1864. In one of the sequences a copy of Auguste Renoir’s painting, Two Girls at the Piano is seen hanging behind Katherine on a wall.
But this painting was only painted in 1892, a good 28 years after the flashback takes place. It’s surprising that eagle-eyed viewers, especially the ones who are enthusiastic about art, have not noticed this error.