I work in central London and feel the same way. Coworkers are often surprised that when I moved to London, I chose to go quite a bit north and have to take the tube for 45 minutes to get to work.
But I live on a one way street with no traffic, and when I look outside my window, there is a giant field of grass with lots of huge trees.
I can go outside, lie down in the grass, enjoy the peace and quiet. I will watch the squirrels outside on my days working from home, trying to fight the crows for food. The crows outsmart them every time, without hesitation. It's part of what keeps me sane in this big city.