The Ambrosoli Block, also known as the Stone Castle, is a stunning four-story building constructed of locally quarried Milford granite and brick, that has ties to the early development and history of Italians in Milford, Massachusetts. As local granite quarries in Milford prospered, many Italian-born immigrants settled in the community near their place of employment. Bernardo Ambrosoli (1843-1896), a well-known hotel proprietor in Boston’s North End, owned this structure in Milford, which served as a residential building and meeting and social hall for the local Italian community. The building was constructed by Giovanni Battista Giacomuzzi (1857-1919), a local stone cutter and builder. Bernardo Ambrosoli had connections to Milford as he also operated a hotel there, and owned this building which became a hub of early Italian-American life in town. The Stone Castle also served as the early meeting place for congregants of what would become the Sacred Heart Church of Milford. Bernardo Ambrosoli tragically died in 1896 when he was shot and killed by a bartender at his North End hotel. The Stone Castle, when built, was three stories tall with a one-and-a-half-story four-gabled roof on top, which burned in 1900. The present fourth floor in stone was added soon after with the brick banding showing the location of that addition. Today, the building is residential use.