The Old Market Square "(Stary Rynek)" is the large square on which the Old Town neighbourhood is centred. The sides of the square measure approximately . There is a group of buildings in the central part of the square, chief of which is the Old Town Hall "(Ratusz)". On each side of the square are tall rows of former tenement houses "(kamienice)", many of which are now used as restaurants, cafés and pubs (often with outdoor tables on the square itself). The square was originally laid out in around 1253, with each side divided into 16 equal plots, and many changes to architectural layout and style were made over the centuries. Major changes were made from 1550 onwards by Giovanni Battista di Quadro, who reconstructed the Town Hall and several other buildings in Renaissance style (severe damage had been done to the buildings by a fire of 1536). Most of the buildings in the square were reconstructed following heavy damage in the Battle of Poznań (1945).