Massachusetts State House - 1875.
Massachusetts State House - 1883
Most Bostonians know that the State House on Beacon Hill replaced the original (and still standing) State House on State street. The 'new' State House was designed by Charles Bullfinch, and erected in 1798 on land previously owned by John Hancock.
State House with back addition.
State House addition - 1902.
In 1898, there was a significant expansion to the back of the building, designed by architect Charles Brigham. A few years later, Brigham would design the First Church of Christ, Scientist on Massachusetts avenue.
Wings added - 1917.
The East and West wings were added to the building in 1917 by architects Sturgis, Chapman and Andrews. I can't find any photos of the State House showing the buildings siting in front of the West Wing.
Buildings removed from in front of West Wing, 1928.
Finally, the contemporary State House.