The Sant Andreu de Llavaneres Archive Museum (Museu Arxiu de Sant Andreu de Llavaneres) occupies Can Caralt, an 18th-century farmhouse that was converted into a manor house in the latter half of the 19th century. The building itself is the main attraction: an eclectic mansion with ornate detailing, set in a garden in the upper part of the town.
The museum covers the history of the municipality from its agricultural origins through to the transformation of the Maresme coast in the 19th and 20th centuries. Documents, photographs, maps, and objects trace the local community over several centuries. The archive component holds historical records available to researchers. As a local history museum it is modest in scale, but the building and its garden make it worth a visit if you are exploring beyond the beach.