An aerodrome is a place where, well, aeroplanes take off and land. Technically, according to the International Civil Aviation Organization, an "aerodrome" is "a defined area on land or water ... intended to be used wholly or in part for the arrival, departure, and surface movement of aircraft." The first such district to fit that description wholly was located in Viry-Chatillon, a suburb of Paris. In those early days of flight, any open, relatively flat, grassy field would serve ... and did. Which meant, unlike the present, that planes could land and take-off in any direction, adjusting for the wind direction and weather conditions, requiring nothing more than a wind-sock or flag. Then someone had the clever idea of adding paved runways, and all that landing and taking-off got far more complicated.