Cardiff has a big port that used to be known as Tiger Bay. It is now just called Cardiff Bay, and the Welsh Government works there. There are now lots of shops, pubs and restaurants in Cardiff Bay. Cardiff has an international airport, and is twinned with Nantes in France and Stuttgart in Germany. Cardiff has one of the largest stadiums in the United Kingdom, the Millennium Stadium, where important world sports matches and concerts happen. Other big stadiums in the city are the Cardiff City Stadium, where the main football team play, Cardiff Arms Park where the main rugby team play, and the SWALEC Stadium where cricket is played.