Opera della Primaziale Pisana is the organisation set up to supervise the works for the erection of the monuments of Piazza del Duomo.
The Opera was established at the time of the first works for the erection of the monuments of Piazza del Duomo, which took up and distinguished the whole period of the mediaeval city-republic of Pisa. As proven by the two famous inscriptions on the façade of the Cathedral, in 1064 the first stones of the Cathedral were laid, and victorious expeditions headed for the Sicilian coasts and the port of Palermo; and the new temple was built at the time of Bishop Guido (dead in 1076).
Official Tourism Website for Pisa Province
This section allows you to purchase online your ticket for the Leaning Tower in advance
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