There are many favourite destinations in London and outside. In London it must be central London, Westfield shepherds bush/ Stratford, Hyde park and few more.
Outside London will be number 1 for me. There are so many beautiful places to visit such as Milton Keynes, Surrey Box Hill, Aylesbury, Bristol, Brighton and many more. You can visit so many places in one day.
Best destinations are London city for tourists as you can do a lot of things, such as the hop-on-and-hop-off bus.
Outside London, Box hill Surrey is an amazing place with a lot of nature and an amazing view!