That is 400,000 sq ft looking like a large empty lipstick box over London Wall.
On a clear day you could see the Saxon smoke from London Wall.
The police point out that there will be a one-hour rally at London Wall from 3.40pm-4.30pm.
The police have just tweeted that the only road closure still in place is at London Wall.
There's still around 200 left - many listening to a range of urban music on London Wall.
In 1837 it was laid out as a public garden, which remains today, with a preserved section of the London Wall on its north edge.
The Romans built the London Wall some time between 190 and 225.
It was one of the last remnants of the London Wall.
They sat together on the top of the London Wall, not speaking.
It is named after one of the original seven gates in the London Wall.