Watch | Munich’s Octoberfest begins

Munich's 183rd Octoberfest kicked off with the traditional tapping of the first beer from the first keg - and the clinking of glasses. It's dubbed the world's largest, rowdiest and most famous beer festival. Authorities say they've taken measures like enhancing security checks to improve safety without changing the mood of Octoberfest. With its roots dating back to a royal 1810 Bavarian wedding so extravagant that it turned into a yearly tradition. It's that time of year again to drink and be merry in Germany.