Say where in london you can 1) take a picture of black ravens 2)see the monarch in his/her office 3)listen to spikers 4)walk on the grass and enjoy the beauty of tress and flowers 5)see an ancient castle 6)see the prime minister in his/her office 7)look at a good collection of paintings 8)look at the statue of admiral nelson 9) ride on a doble-decker bus 10)go to some good shops