English: Aerial perspective of the Piazza del Duomo, created from laser scan data. Though nominally called Romanesque, the Cathedral of Pisa (1064-1110) exhibits aspects of Roman, Islamic, Byzantine, and trans-Alpine architectural influence. Stylistically it is without precedent. Inscriptions on its white marble facade describe the history of the cathedral and the circumstances of its construction. The cathedral is cruciform in plan and is situated on an east-west axis with the primary apse facing east. The plan is more Early Christian, or even Roman, than Romanesque in character. Each arm of the transept has its own apse, like two small basilicas attached to a larger one. Recycled classical columns were used to support the interior.