OK, I meant at least have a roundabout, and I meant in England not in London.

It's not just London. For example the small city I now live in (Lincoln) has very few, if any, roundabouts in the city itself - they are confined to the ring-road around the place, and roads in/out of it. Not true for all places, of course - for example Swindon is notorious for its "Magic Roundabout".