The guild houses on the Grote Markt (Grand Place) are among the architectural highlights of the city. But what is a guild in the first place? Well, you could say they were medieval "unions." At the time, every craftsman of a given trade was part of his own guild, which protected his interests. During the Golden Century, these guilds became very rich and powerful so they wanted to have headquarters that represented their might. Their medieval splendour -note the ornate architecture and the statuettes- is very alluring, even though all but two of the guild houses were rebuilt as late as the 19th century. Try to find out which ones!