If you are ever in London and you want to use atleast one day out if your vacation to see some really cool stuff you should go down to Cromwell Street and see the Natural History Museum or the two others next to it rg the Science Museum and the Victoria and Albert Museum. Also close by there are restaurants so once you've walked your feet weak you can go and eat some good food eg Chinese, Italian, Argentine, USA, Polish, French and more than I was able to ascertain at a glance.
London has about 10million people so it also has many places to play👍😎♨