Lucius Knowles House
 The Lucius Knowles House is a historic house at 838 Main Street in Worcester Massachusetts. It is one of the city's best preserved Second Empire buildings. The three story wood frame building was built c. 1870 for industrialist Lucius Knowles best known for his innovations in the manufacture of looms. It has a symmetrical front facade with mansard roof and a front entry sheltered by an elaborately decorated porch.