LISTEN: Queen celebrates 90th birthday
Clyde News speaks to people in Glasgow and the West who have met the Monarch
Beacons will be lit in hundreds of towns and cities across the UK including Glasgow and the West to mark the Queen's 90th birthday.
In Stirling people will gather at the castle and on Dumyat hill and in Greenock, Lyle Hill will host a celebration.
In Glasgow some of the city's care homes will host tea parties and every resident will be given a specially minted commemorative coin to mark the milestone as Britain's longest serving monarch.
Scotland has remained a special place for the Queen throughout her 90 years, home to key events, regular visits and - of course - family holidays.
Last year the Queen and Prince Philip opened the new Queen Elizabeth University Hospital in Glasgow.
The then project manager David Loudon met her:
Back in 2006 the Kelvingrove Art Gallery was officially opened by the Queen after a refurbishment. The Assistant Manager Andy Cudden speaks about meeting her.
Just last year the Queen and Prince Philip marked the day she became the UK's longest-reigning monarch with a steam train ride from Edinburgh for the opening of the new Borders Railway.
The crowds that gathered to greet her in Waverley Station and at stops along the way to Tweedbank showed the mutual affection.
During her reign, the Queen has visited almost every part of Scotland, launching ships and opening important developments.
As head of the Commonwealth, she attended the Glasgow 2014 Games opening ceremony before she led the rest of her family in a series of visits to venues during the event.
In one trip to Glasgow National Hockey Centre, the Queen "went viral'' after appearing to "photobomb'' a selfie by Australian player Jayde Taylor by smiling in the background.
Another memorable visit in Glasgow 15 years earlier saw the Queen sit for tea in a council house in the Castlemilk area.
As part of a drive to modernise the royal family, the Queen met Susan McCarron in her two-bedroom bungalow.
They discussed the area and Ms McCarron's health over a cup of Tetley tea.
Ms McCarron later said: "I wasn't nervous at all.
"She was asking about the house and how long I lived here, where I lived before, how I felt about the house and things like that. I found her very easy to talk to and she was very nice.''
Despite popular garden parties at the Palace of Holyroodhouse in central Edinburgh, the Queen's favoured residence remains the rural Balmoral estate in Aberdeenshire.
Queen Victoria described Balmoral as her "heaven on earth'' when it was redeveloped in the 1850s and the current Queen is said to be "never happier'' than when spending her summer break at the north-east estate, her private home which was handed down through generations of royals.