Istanbul Urban Database is an excellent work and amazing database for urban researchers and activist alike.
an accessible, interactive mapping platform for historians, architects, city planners and other researchers to examine and contribute to the collective memory of Istanbul. This project is a sustainable platform that blends a wide range of historical data, and is the most comprehensive online archive of Istanbul’s urban history. (Istanbul Urban Database)
It is an ongoing project developed by Nil Tuzcu, a researcher based at MIT Department of Urban Studies and Planning.
Istanbul Urban Database currently has 8 categories: base maps, transportation, photos, major roads, spaces of everyday life, housing, master plans, and growth: Base maps include aerial photos, Jacques Pervititch insurance maps which were drawn between 1921 and 1946, and several Ottoman era maps provided by the Harvard Map Collection. (Istanbul Urban Database)
A massive thank you to Nil for developing such a platform for urbanist and urban historians.