THE PARTY OF THE CENTURY -- FOUR CENTURIES, TO BE EXACT

Quebec City turns 400 in 2008, and you can boogie on a floating dance floor under le clair de lune ‘til fireworks meet the dawn.

Go big or go home! That's Quebec's enduring mantra when it comes to throwing a memorable bash. The coolest kid on the Canadian playground, la belle province played host to the world during a wildly successful World's Fair in 1967 and summer Olympics in 1976. Now the welcome mat is out again as the photogenic capital, Québec City, prepares to celebrate its 400th…