Browse the genealogy of the Bay State's built environment in the collection of real estate maps from the late 19th and early 20th centuries. The State Library's collection includes over 200 atlases, covering 6,500 maps from 12 counties and more than 80 municipalities. Visitors to the site can examine all of the volumes either as PDF files or via Flickr.
The collection of real estate atlases by George Washington Bromley were published to show Boston neighborhood information spanning 50 years, between 1883 and 1938. Mapjunction is an interactive database that allows you to compare today's neighborhood with yesterday's by overlaying USGS maps with Bromley maps. Maps may be downloaded and shared.
The State Library of Massachusetts has digitized historical real estate atlases of Massachusetts communities dating between the late 19th and early 20th centuries.