If a museum were burning down and you could save 1 piece of artwork, which would it be and why?

In this scenario, the museum is theoretical, and it contains all of the important works of art that exist. You CANNOT pick artwork that HAS existed, but doesn’t anymore. You cannot pick more than one, and there is nothing you can do to save the rest of them, anything you don’t pick will be destroyed for all time.

I could not do it. whatever I came to first, I suppose. Important artwork is important for a reason. Each one a depiction of the soul of a person, in many cases an entire people, in a place and time on this earth. They could each be argued for I’m sure, but how could any one really be more important than another?