Night has fallen over Vienna and it is ball season. The Champaign is pouring and yourhotel guests don't want to go to bed yet; they'd much rather dance in one of the famousballrooms of Vienna.Let's Waltz are the opening words of Vienna's annual and world-famous opera ball - andit's also the name of the first expansion for the popular Grand Austria Hotel board game.Let's Waltz lets your guests visit the famous ballrooms of Vienna, providing new andexciting strategy options to explore.