As of December 2018, it costs €6 to enter, but don't that that stop you. The Bruges city hall is well worth it.
You'll enter the building, ascend a beautiful flight of stairs, and find yourself back in the 14th century. Be sure to pick up one of the laminated info sheets just to your left as you enter. This will help you understand the incredible murals - they document Bruges's history before there was even a town charter.
There is also a small museum about halfway down the main room to your left. Unfortunately, I arrived with only half an hour until they closed, and spent nearly all that time appreciating the murals and other decorations in the main room.
If I ever find myself back in Bruges, I would definitely make a return visit to the Stadhuis - highly recommended! read more