Cardiff 2012 Calendar. Cardiff (Caerdydd) is both the largest City and County in Wales. Outside of London, Cardiff has the largest centre for media in the UK. Over recent years, it has been one of the fastest growing cities in Europe and is part of the Eurocities network of the largest European cities. The recently regenerated Cardiff Bay is now a stunning and integral part of the city and adds to the hustle and bustle atmosphere of this thriving cosmopolitan city. If you love Cardiff, make sure you get this fantastic Cardiff 2012 Calendar!