Nichols House Museum (Federal-period Beacon Hill townhouse)

The Nichols House Museum at 55 Mount Vernon Street is an 1804 Federal-style townhouse that preserves urban early 19th-century domestic architecture on Beacon Hill. The house retains original woodwork, period fireplaces, and room layouts characteristic of Federal townhouses, and it documents changing domestic life through successive family ownership. It now operates as a historic house museum interpreting Beacon Hill domestic history.