More reasons you should spend December in Brussels: The Christmas tree and the light show in the Grand Place. We didn't actually know they had the light show. We had just gone to enjoy the night time views, when a group of fellow Americans asked us if we knew when it started. Between mouthfuls of chocolates we'd just purchased, we said we had no idea. Hang out at Christmastime in the evening, one will start before you know it. Just try to socialize with others without a mouthful of food. ;) Have you seen the Christmas light show?