The patron of Biandronno is Saint Lawrence, celebrated on 10 August in the Church of San Lorenzo.
The town holds the Isolino Virginia Prehistoric Civic Museum, an islet that is part of the serial site «Prehistoric Pile Dwellings around the Alps», a UNESCO World Heritage Site. It also overlooks the Palude Brabbia Nature Reserve and the Lake Biandronno Nature Reserve, and holds the Church of Santi Erasmo e Teodoro.