The Library has a trial for Fire Insurance Maps Online (FIMo) through February 28. The trial is set up for access on campus but not via EZProxy so you will need to be on campus or use the VPN to access the resource.
Fire insurance maps were originally created to assist fire insurance companies with assessing their liability in urban areas. They contain detailed information about properties and individual buildings.
Go to https://fims.historicalinfo.com Use the interactive map search or search by place name. During the trial you can search and view historical map coverage throughout the U.S., but will not be able to download full resolution imagery.