BRITAIN-ROYALS

A Union Flag flies in front of the BT Tower displaying the words ' Long may she reign' to pay tribute to Queen Elizabeth II becoming Britain's longest reigning monarch in London on September 9, 2015. Britain celebrated Queen Elizabeth II becoming the country's longest-serving monarch on Wednesday with a flotilla down the River Thames, a gun salute and the peal of Westminster Abbey's bells. It is not known where exactly she will be at 1630 GMT, the best estimate from royal officials for the time at which the monarch, who has become synonymous with Britain itself, reaches the landmark. At that moment, the 89-year-old monarch will have served 23,226 days, 16 hours and roughly 30 minutes on the throne -- over 63 years. AFP PHOTO / BEN STANSALL (Photo by Ben STANSALL / AFP) (Photo by BEN STANSALL/AFP via Getty Images)