PastScape from English Heritage 🌍

PastScape from English Heritage is a searchable resource of the nearly 400,000 records on the archaeology and buildings of England and its territorial waters collected by the National Monuments Record (NMR).

It's got some historic photos there, but records on Listed Buildings have also been illustrated with images from the Images of England project. A search for windmill returns over 1000 records - ranging from the existing, through to "site of windmill - identified from cropmarks".