You have a week – till Saturday, April 26 – to log onto the BBC website and listen to this hour-long documentary about the history of Ireland’s Shannon Airport .

Shannon Airport was the first airport in the world to have a duty free shop and the bar there claims to have invented the now-iconic Irish Coffee drink. And, as the accompanying photo gallery shows, the airport has had its share of celebrity visitors, including Marilyn Monroe, Bing Crosby, Fidel Castro and Gene Kelly.

Gene Kelly shopping in the Shannon Airport duty free shop; courtesy Shannon Airport Authority.