We are on Shooters Hill in 1872 and we are looking at the OS map of London for that year.
It was a much bigger place than we know today and was built around 1749, although it could be older. It was demolished in 1881 to make way for the present one.
And dotted around are the fine houses of the rich set back in their own grounds.
What I particularly like are the signs for pumps.
Picture; detail from the OS for London, 1868-72, courtesy of Digital Archives, http://www.digitalarchives.co.uk/