Answer:
The Old State House Museum.
Explanation:
The Old State House is a public building built in 1713 and one of the oldest building in Boston, that still stands. The building was a place for meeting in the early days of colonial period. The site is mostly remembered for the Boston Massacre, 1770. The museum is stuffed with artifacts, exposition, and artwork from the 1900s. The artifacts that are housed in the museum includes velvet jacket of John Hancock, engraved Boston massacare by Paul Revere, articles of Lydia Hutchinson and others, etc.
Thus the location in which most of the artifacts of Boston from the colonial period are housed is in the Old State House Museum.