I will be honest, I am not a huge fan of Hard Rock Cafe but if there is one in the city, I will stop and visit it. I have been to one in Denver, London, Dublin, Oslo, Guam and Beijing.
The Hard Rock Cafe in London is the one that started it all. It is located near Hyde Park Corner and is a place where you can get some American food if you miss it.
So if you are out in London, why not stop by here for lunch?