On the Medieval and Post-Medieval Archaeology facebook page, someone posted this interesting site: Old Maps Online: Discovering the Cartography of the Past. The site provides hundreds of maps for different parts of the world between the 17th and 20th century. As the site notes here,
“The OldMapsOnline Portal is an easy-to-use gateway to historical maps in libraries around the world.
It allows the user to search for online digital historical maps across numerous different collections via a geographical search. Search by typing a place-name or by clicking in the map window, and narrow by date. The search results provide a direct link to the map image on the website of the host institution.
Its creation was funded by the Joint Information Service Committee under Strand C: Clustering Digital Content of their Content Programme 2011-13. It is the successor of a project lead by the Moravian Library in the Czech Republic between 2008 and 2011. The portal is based on the MapRank Search technology originally developed for theKartenportal project in Switzerland.”
If you follow this link, you can see the maps of the Greece, the Peloponnese, and the Corinthia. Great resource!