Queen Elizabeth has left behind a secret letter addressed to the Right and Honourable Lord Mayor of Sydney, Australia. The letter which was written 38 years ago is hidden in a vault in Queen Victoria Building. The letter's contents should be read after another 63 years. The queen penned down the letter in November 1986, its instruction reads,
"Greetings. On a suitable day to be selected by you in the year 2085 A.D. would you please open this envelope and convey to the citizens my message to them."