It is the big ball season in Vienna currently, and the most important ball of them all is the Opera Ball arranged on February 16th in 2012. But, it is worth knowing that besides the Opera Ball, there are more than 300 balls arranged in Vienna in the period between the end of December and the start of March every year. So, if you are in for a nice ball, head of to Vienna and get ready for a real Wiener waltz in Vienna.