Why go
The city's monuments make more sense when you picture a powerful port rather than an isolated inland tower. Pisa traded across the Tyrrhenian, competed with Genoa and expanded its influence in the Middle Ages; the Piazza del Duomo records the ambition of that period.
The full story
Evidence of an Etruscan community places Pisa's story before Roman rule. Its river connections then helped it serve as a port and trading centre. The coastline gradually moved away as sediment built up, so modern Pisa can seem surprisingly inland for a city with a maritime past. In the Middle Ages, the republic's ships and commerce tied it to Corsica, Sardinia and other Mediterranean coasts. Rivalry with Genoa shaped its politics and military fortunes, while campaigns in the south of Italy marked a period of particular strength. The scale of the cathedral complex belongs to that era of wealth and ambition. Later Pisa did not simply stop: civic spaces and institutions continued to develop, leaving a city with buildings from several political chapters. At the Piazza del Duomo, read the cathedral, baptistery, cemetery and bell tower together as the public statement of a republic, then follow the Arno to reconnect them with the geography that supported it.