That's the one from the film I assume? It's basically the only reason I've ever wanted to go to Bruges.Went there for a day trip back in January.
The center of town has the river/canal with the square which is the tourist area. There is a clock tower there which you can pay to get up. BE CAREFUL if you are there on the hour or even at any of the quarter/half on the hour because your head is about 2feet away from a bell the size of a mini. It gave me quite a shock! There is literally nowhere to run and only 1 narrow stair case down.