Richard Horwood's PLAN of the Cities of LONDON and WESTMINSTER the Borough of SOUTHWARK, and PARTS adjoining Shewing every HOUSE (1792-99) is used as a base map for markers locating sites depicted in four popular print series of the 18th and 19th centuries. Each marker stands for a specific place in London depicted in Thomas Malton's Picturesque Tour Through the Citties of London and Westminster (1792-1801), J.B. Papworth's Select Views of London (1816), Richard Phillips' Modern London (1804) and Rudolph Ackermann's Microcosm of London (1808-10). This map was created by Matthew Sangster for his research project Romantic London (