Architecture

See also:

The Leaning Tower of Pisa - The official site gives an illustrated history of the famous tower, Quick Time panoramas and searchable archives of photographs and historical sources.
The Leaning Tower of Pisa - An illustrated history of the leaning tower from its construction to the present day, from Pisa Online.
Nova Online: Pisa Panorama - An overview of the Field of Miracles, including the famous Leaning Tower. History of interventions, and details of some of Galileo's experiments.
Opera della Primiziale Pisana - Organization overseeing the construction and upkeep of the various monuments in Piazza del Duomo. Detailed historical information and photographs, with virtual visit, details on the cathedral choir, musical events and archives. Online ticket office for the Leaning Tower. [Flash]
Pisa in Virtual Reality - Interactive 360-degree QuickTime panoramas of the architectural ensemble of Cathedral Square, the cloistered churchyard, Baptistry and Cathedral, with brief descriptions.