The British Library holds hundreds of thousands of topographical views, the most comprehensive and important collection in Britain.
Images Online
http://www.imagesonline.bl.uk/
Images Online is a picture library. You will read to register. There are simple and advanced search options.
Online Gallery
http://www.bl.uk/onlinegallery/index.html
Several themed sections cover topographical views. The accompanying text should be cross-referenced with Explore the British Library.
