Welcome to the Grand-Place, the central square of Brussels. You are standing in a cobbled rectangle that measures 68 by 110 meters. The Dutch name is Grote Markt, which simply means Big Market, and that tells you what this place was for. It was the commercial heart of the city, and it is also the seat of the Town Hall, so it has long been the political center too. Take a slow turn on the spot. Around you, opulent guildhalls crowd shoulder to shoulder with the grand civic buildings. The earliest written reference to the square goes back to the twelfth century, yet most of what you see dates from the late seventeenth century. That is one of the great surprises of this place. It looks like a single, harmonious composition, but it grew from the rivalry and pride of merchants, craftsmen and city authorities. In the next few minutes we will look at how the square was destroyed and reborn, who built these houses and why, what the buildings say in stone and gold, and how this market square became a World Heritage Site in 1998. Let your eyes wander upward as we go. Most of the stories are written above head height.