Imagine finding a super-valuable painting in your attic or at a flea market. While the most expensive paintings ever sold ...

At the top of the most expensive paintings list is none other than Mona ... The artwork's triumphant return culminated in a momentous sale at Christie's New York in 2017. While the owner remains ...

However, wealthy people seem to invest more of their money into rare artworks, which is why the most expensive item ever to be sold at an auction was a painting by the famous Leonardo Da Vinci.

The painting is by Italian artist Amedeo Modigliani, titled "Nu couché (sur le côté gauche)." The sale breaks the top 15 most expensive paintings ever sold via auction or private sale.