Heathrow London is a subject any first-time visitor will want to learn more about, long before they ever book their first flight to London or the UK. You are talking about the kind of airport that is one of the jewels of London’s place as one of the most important cities in the world. This is a subject that involves learning about the various ways Heathrow serves the world at large. This is a subject that you will certainly want to study in more elaborate form, if you are planning to make a visit to the city at some point in the future. This is an airport that is so much more.