Roundabouts ? You havent lived till you have tried the SUPER roundabouts that have recently been introduced in U K ( Hemel Hempstead , High Wycombe and Swindon so far to MY knowledge) . On these there is one HUGE roundabout with Mini Roundabouts at each intersection , and the traffic goes round BOTH ways at the same time .
A bit frighteneing the first time you meet one , but surprisingly , the DO seem to work OK . Always remember the rule is to give way to traffic approaching from the right !