I've chosen photos of 2 London parks - there are so many parks, its a very green city. In some ways at least.
One of my favourites is St James' Park, close to Westminster and Trafalgar Square:




As well as the wildlife, there is an allotment which began as a "Dig for Victory" garden in 2007, 70 years after the 2nd world war campaign in Britain - and which is continuing with an emphasis on sustainability, recycling, promotion of "grow your own" and allotments.
Another favourite and the most familiar is Greenwich Park, which I cycle/walk through on my route to and from work regularly, in all seasons...



