Hidden in plain sight in the heart of Sydney is one of the city’s most fascinating mysteries — a sealed letter written by Queen Elizabeth II that will remain unopened until the year 2085.
The letter, penned by Her Majesty in November 1986, is addressed to the Lord Mayor of Sydney and the people of the city. It was personally sealed by the Queen with strict instructions that no one should read its contents for 99 years. For now, the message remains a complete mystery.
A Royal Time Capsule in the Queen Victoria Building

The letter is safely stored inside a secure glass case in the historic Queen Victoria Building (QVB) in Sydney’s CBD. The building itself is one of Sydney’s most iconic landmarks, originally opened in 1898 during Queen Victoria’s reign. Today it is a beautifully restored shopping centre, but it also houses this unusual royal time capsule.
The envelope bears a clear instruction written by Queen Elizabeth herself:
“On a suitable day to be chosen by you in the year 2085, please open this envelope and convey to the citizens of Sydney my message to them.”
Until that day arrives, the letter must remain sealed.
Why Did the Queen Write the Letter?
The message was written during Queen Elizabeth II’s visit to Sydney in 1986 as part of Australia’s bicentenary celebrations and heritage restoration projects. During that time, the Queen Victoria Building had just undergone a major restoration, bringing the historic structure back to life after decades of neglect.
To commemorate the building’s rebirth and to leave something special for future generations, the Queen wrote the mysterious message.
What exactly she wrote remains unknown — even Sydney’s Lord Mayor does not know what is inside.
A Message Waiting for the Future

The Queen’s Secret Letter in Sydney: A Message from 1986 That Cannot Be Opened Until 2085
The letter will remain sealed for nearly a century. When it is finally opened in 2085, most people alive today will not be here to hear the message. The note was intended for future generations of Sydneysiders, making it one of the city’s most intriguing historical secrets.
Visitors walking through the QVB today can see the elegant glass display where the letter rests, quietly waiting for the day it will finally be revealed.
A Royal Mystery That Inspires Letter Writing
In an era dominated by emails and instant messages, the Queen’s handwritten letter reminds us of the enduring power of the written word. A simple envelope, sealed and protected, has captured the imagination of an entire city for decades.
Who knows what message the Queen left behind for Sydney?
We will all have to wait until 2085 to find out. Until then, it remains one of Australia’s most captivating unopened letters — a royal message traveling through time.
A letter written by Queen Elizabeth in 1986, addressed to the Lord Mayor of Sydney, was sealed by the Monarch and cannot be opened until the year 2085
The Queen has left an intriguing secret in Sydney: a sealed letter, personally written by Her Majesty in 1986, that cannot be opened for 63 years.
The handwritten note was penned by Her Majesty more than 30 years ago, and is addressed to Mayor, for the people of Sydney. It lies in the city’s Queen Victoria Building, and its contents have never been revealed.
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