Basic radius targeting uses GPS locations to reach people, businesses and places based on location. Google enables users to create customized maps of destinations.
Spring break will soon be here, which is a good time to visit Boston. Here is a customized map of a day spent visiting a few popular spots, including Boston Commons, the Fine Arts Museum, Fenway and a local pizzeria.
To create this I searched places of interest and used the line tool to link from one location to the next, using the driving and walking options in the left hand toolbar:
On A Mission 
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