Stein am Rhein, Switzerland

Little Stein-am-Rhein is an almost perfectly preserved medieval village, famed for the intricacy of the sixteenth-century frescoes which adorn houses in the village. It's well worth a visit, and there are plenty of picturesque narrow lanes and alleys to explore, but the village sees so many tour buses during the frantic summer season – about a million people pass through annually – that to enjoy the place you should stay overnight: it's only after 5pm and before 10am that there's much peace.