Updated: A complete London travel guide to pay your respects to Queen Elizabeth II

Across the world, millions are grieving the passing of Queen Elizabeth II.

Tributes have poured in from every corner of the globe, from New Zealand to New York.

But London - the city where the monarch spent the Blitz and lived much of her life - will doubtless be the centre of commemoration. As of Wednesday morning, more than 2000 people were already lining up to see the Queen lying-in-state.

With hundreds of thousands more mourners expected, the cabinet office is urging travellers to plan ahead. 

"We recognise that many people will travel to Buckingham Palace and other Royal Residences as a mark of their respect,” a spokesperson said.

“We expect large crowds, which can pose risks to public safety. Those who do travel are asked to follow any instructions given to them by stewards and the police.”

If you want to visit the capital to pay your respects, here’s everything you need to know. 

If you’re visiting London, you’ll want to line up your visit with the key commemoration events. The UK is in an official period of mourning until seven days after the Queen’s funeral. But the big events will take place within the next ten days.

The Queen’s coffin has arrived in London.

From 5pm on Wednesday 14 September, The Queen will ‘lie in state’ for four full days, until the morning of Monday 19 September. It will be mounted atop a raised platform in Westminster Hall. 

On Tuesday night, the route for people queuing released last night by the UK government.

The line will start at Albert Embankment near Lambeth Bridge, and may stretch all the way to Southwark Park in south-east London.

Expect long queues - many mourners lined up for hours to catch a glimpse of the Queen Mother’s coffin in 2002.

To get to Westminster Hall, take an underground train