system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What makes the Mona Lisa so highly regarded?

The Mona Lisa is always described as *the* work of art, but I'm not sure what make it stand out over so many other masterpieces.
gpt
It's by a famous artist/inventor and got a ton of press 100 years ago after being stolen. That made it an iconic piece of art, causing it to be studied by artists and the general public which has resulted in it's popularity perpetuating.