Mourners have travelled from across the country and queued since before dawn to bid farewell to the Queen.
Huge numbers of people from every corner of the United Kingdom arrived in London over the weekend and this morning, filling viewing spots along the procession route hours before the funeral begins at 11am.
As of 9am crowds still arriving to watch the state funeral this morning were being sent to Hyde Park where they can watch the historic event on four big screens.
Determined not to miss out on the chance to say their final goodbyes, many people spent a cold night camping in central London ahead of the procession from Westminster Hall to Westminster Abbey, and then on Wellington Arch.
Over the weekend leaders from across the world arrived in the UK, such as Joe Biden, who took his armoured limousine, ‘the Beast’, from Stansted airport on Saturday.
Jair Bolsonaro, the rightwing president of Brazil, has made his first official visit to the country; South African president Cyril Ramaphosa signed a condolence book at Lancaster House; and French President Emmanuel Macron arrived in Westminster on foot.
Extra train services running throughout the night have allowed members of the public without access to private jets to make it to London, with some well-wishers' journeys beginning at 2am
Christine Birch, 61, her husband Stephen Birch, 58, and friend Margaret Frost, 68, left Bakewell, Derbyshire, in the early hours of Monday to pay their respects to the late monarch from Constitution Hill by Buckingham Palace.
An emotional Mrs Birch said: "It's strange to come down to London for something so sad, because normally we come to all the celebrations.
"It's going to be very emotional for everyone. I think it's very important that the whole country has come together for this.
"The least we could all do is to make an effort to pay our respects. She's given her entire life for all of us."
Grandmothers Christine Whitby and Shirin Thorpe, both, 61, were the first mourners to arrive for the funeral.
The pair from Sevenoaks, Kent set up camp in Westminster at 8am on Thursday morning to ensure they got the best possible spot, finally settling after being moved on three times by the police.
Tents, inflatable mattresses, sleeping bags and winter coats helped them get through four cold autumnal nights.
Shirin told Mail Online: "There's going to be millions of people here and we didn't want to miss out."
Others, such as Yan Lung and Lulu Lee, didn't have too far to travel, but got up early to make sure they wouldn't miss out on a chance to see the procession.
The couple - who moved from China to the UK 15 years ago - left Lewisham in south east London before sunrise to "say goodbye" to Her Majesty.
Becky King and Michael Rutherford decided to come down from Edinburgh after they were unable to pay their respects when the Queen was brought through the Scottish capital.
The doctor and IT worker stayed overnight at a friend’s house in Lewisham.
Becky said: "I have great admiration for the Queen. She stands for integrity, respect, devotion to duty and our country."
Some people have found the journey less easy, especially those travelling through London Paddington station this morning.
All lines between Paddington in west London and Reading in Berkshire are blocked because of damage to overhead electric wires, Network Rail said.
Services run by GWR, Heathrow Express and the Elizabeth line are disrupted.
Passengers on a GWR train due to run to Paddington were told by a member of staff using the public address system: "My sincerest apologies for the delays on such an important day for the country."
Mourners travelling to the funeral events in Windsor from Paddington are also affected.
One person wrote on Twitter : "I'm stuck on the train for two hours. Got up at 4 am to get to Windsor early for the viewing. Absolutely horrible service.
"Barely even caught this train because nobody at Paddington knew which one it was. Sure didn't expect this dismal service."
Disruption is expected to continue for the rest of the day.
A train which departed Paddington at 6.25am has been stuck outside the station for more than two-and-a-half hours with passengers on board.
GWR told concerned customers that the train is "due to be evacuated".
Rail lines between Reading and Newbury are also closed due to a person being hit by a train.
This is causing GWR trains to be diverted, delaying more journeys to the capital.
Elizabeth Abayomi, 18, had been at Paddington since 5am hoping to catch the 6.37am to Exeter to start university.
The student, who will study law, said: "We were on the train for a long time then we were told that there had been a fatality at Newbury. The driver recommended that we go and get breakfast and when we got back the train was locked."
Another passenger travelling to Newport, who did not wish to give her name, had been waiting since 6.40am.
She said: "It's annoying but I'd rather stay calm and sit here and do some knitting."
