Every year, the European postal companies issue stamps on a common theme. This year's theme is "Visit" - in this case, "Visit Denmark". Post Danmark has recently issued a single EUROPA stamp. It depicts Pierrot pedalling away on his "Christiania bike" in the middle of rush hour, with Harlequin sitting in the box at the front. They are part of the cityscape, alongside everyone else travelling to or from work - part of the 36,000 cyclists a day recorded by the automatic cycle-counter on the Queen Louise Bridge.