9/ London has evolved, and with it the maddening complexity of its
admin divisions.
"Greater London" is 32 local authority districts.
Confusingly this includes the City of Westminster, but not the City of London (why many admin maps of London have a hole at the center). Some are "Royal" boroughs, some are not.
https://en.wikipedia.org/wiki/London_boroughs
The boroughs typically have only minimal correspondence to things like postcode areas, police districts, etc.
10/ The City of London - traditionally marked by dragon boundary posts - is run by a corporation, though there is no surviving record of a charter first establishing the Corporation as a legal body.
https://en.wikipedia.org/wiki/City_of_London_Corporation
Of course the Corporation does not have general authority over the Middle Temple and the Inner Temple, two of the four "Inns of Court"
It is odd historical exceptions ALL the way down.
https://en.wikipedia.org/wiki/Dragon_boundary_mark
https://en.wikipedia.org/wiki/Inner_Temple
#geoweirdness
10/ The City of London - traditionally marked by dragon boundary posts - is run by a corporation, though there is no surviving record of a charter first establishing the Corporation as a legal body.
https://en.wikipedia.org/wiki/City_of_London_Corporation
Of course the Corporation does not have general authority over the Middle Temple and the Inner Temple, two of the four "Inns of Court"