In Assassin's Creed II, San Gimignano contains the Basilica of Santa Maria Assunta mission location.
San Gimignano is a Tuscan hill town famous for its medieval towers, and the game recreates it as one of Ezio Auditore's Italian destinations. The Basilica of Santa Maria Assunta, also known as the Duomo of San Gimignano, appears in the game's historical exploration and mission structure.
Assassin's Creed II divides much of its Italian journey among distinct cities and regions, including Florence, Monteriggioni, Tuscany, San Gimignano, Forlì, and Venice. That geography can cause confusion because several locations are visited during the same broad Renaissance storyline.
The real San Gimignano is especially recognizable for its preserved medieval skyline. The game uses that architectural identity, including towers and fortified urban spaces, to support climbing, investigation, and pursuit gameplay.