The Scottish Rite Masonic Museum & Library, formerly known as the National Heritage Museum and the Museum of Our National Heritage is a museum located inLexington, Massachusetts. Its emphasis is on American history and Freemasonry, and it contains the Van Gorden-Williams Library & Archives, a Masonic research library. The museum was founded and is funded by the Northern Masonic Jurisdiction of the Scottish Rite, an appendant body of Freemasonry.