Historical Sites in Mount Washington 2 Historical Sites in Mount Washington Mount Washington SearchAll (13)Hotels & lodging (1)Parks & nature (3)City Halls & Executive Offices (1)Churches & Places of Worship (1)Historical Sites (2)Fitness & Recreation Centers (2)Attorneys & Law Firms (1)Landscaping & Lawn Care Services (1)Benjamin Osborn House Historical SitesMount Washington, Massachusetts Historical Sites