Sightseeing in Tuscany picture - This is reflected in the sculptural decoration of the ground floor of the Tower, in which motifs and elements to be found in the architecture of the Cathedral are used, while the circular form of the Tower would seem to relate to the curves of the Cathedral's two apses. The Tower, with its great height, was a visual fulcrum, visible from all areas of the Piazza, and, probably, from the river Arno. In this way the Tower assumed the function of both connection between the city and the piazza, sited in a decentralised area of the urban nucleus, and beacon: a reference point and look-out and, ultimately, an authoritative symbol of the civic and religious pride of the Pisan community.