Last July we visited London for a week. Accommodations in London are very expensive so we stayed with a friend of my girlfriend who is living there for two months doing her thesis. London is so big and cosmopolitan that no one notices you even though you like dressing very strange. Visiting the British Museum we noticed the enormous power the British army had in the past. Egyptian and Greece cultures are there almost totally.
Our friend is living in Elephant and Castle neighborhood. We feel there like white people in the middle of Africa. London has a lot of different communities of people: African people, Muslim people, Chinese people... and every community has built its own neighborhood according to its culture and tradition.
We spent a day in Kensinghton and Hyde parks. Both parks have in total a surface of more than 300 Has. We saw there British people doing picnics with their typical tablecloth and sandwiches for lunch. The weekend was very hot for London's people -about 30º C, not much for Spanish people, so people there took advantage of the sun.
I don't know exactly what is the reason for doing things totally different in comparison with the rest of the world: cars driven on the left, semaphores using the orange color for pedestrians and cars too, you have to push the faucet in order to turn it on instead of pull it. Thinking in terms of costs, it has to be more expensive to manufacture cars with the steering wheel on the right. Maybe there will be some companies specializing in this narrow and potentially profitable market.
The most negative thing about London is its method of managing the garbage. There aren't any garbage cans, so the garbage is all over the floor. London is invaded by rats and other animals like foxes. We saw one! The climate plays positively in this case. I cannot imagine here in Spain this neglected service with our high temperatures!
After four days in London behaving like foreigners catching the two-floor bus and taking a lot of photos that will not likely have been seen we came back to Spain and enjoyed our rather hot summer.