LOLOL.
Most of major international airports have trains that connect the terminals.
Well, I am not sure which ones are the best but in my honest opinion, Chicago O'Hare, London Heathrow and LAX are NOT the top ones.
In my opinion it has to be either Amsterdam or Dubai. Those two are awesome, the Dubai one is huge and has loads of stores. The one in Amsterdam is also really cool, it has a train inside it tthat connects terminals :O
I think new York John f Kennedy is the top most
india airport :p hahahahaaha
