 The Green Vault is named after the formerly malachite green painted column bases and capitals of the initial rooms.It has some claim to be the oldest museum in the world; it is older than the British Museum, opened in 1759, but the Vatican Museums date their foundation to the public display of the newly excavated "Laocoön group" in 1506.After the bombing of Dresden during World War II, the Grünes Gewölbe was completely restored.