It's on now! The Christmas Circus in The Hague (held at the Malieveld) takes place between 22 and 28 December. This is considered one of the best in terms of international circuses. If you're looking for a new and exciting way to celebrate Christmas, try celebrating in a heated circus tent. From the website (roughly translated):

Christmas Circus The Hague is a production of the Foundation's Great Russian State Circus. This renowned circus with its rich history stands out very clearly from other major international circuses! Last year Her Majesty Queen Beatrix, Crown Prince Willem-Alexander, and Princess Máxima visited. The royal highnesses intensely enjoyed the pace of the show, the balanced mix of different acts, the perfectionism, the unparalleled humor and ambiance. A show that once again proved that circus art remains valued entertainment for all ages and all generations!

There you have it - even the queen visited. You can purchase tickets online and see a day to day breakdown of events at the circus.