The Mona Lisa gets eaten.
The Venus de Milo is reburied.
The Louvre Museum, has the largest collection of art anywhere in the world. The Mona Lisa, faces it's own risks from within it's airtight casement, painted on wood it can swell and shrink. censors monitored the swelling of the wood, how long will the protection last?. After 100 years the Mona Lisa's failing casement seals let in Death-watch beetles, that soon eat the wooden painting. After 1000 years, the Venus de Milo, the armless statuette, remains only to be buried in dirt and the remains of the Museum.