Agence France-Presse: Venice was under water again on Tuesday after suffering its worst flooding in 22 years, as a new tide left the Renaissance city awash up to about thigh level. On Monday the “acqua alta” (high water) reached 1.56 metres, the highest level since 1986, before beginning to recede. Lower parts of the tourist mecca, including the world-famous St Mark’s Square, remained under water at midday on Tuesday after reaching a high of 1.02 metres, according to the ANSA news agency. The …