What is it? Despite its name, Belsize Park is overwhelmingly residential. But the few patches of green that can be found hereabouts all have their secrets to tell. The gardens on Antrim Grove are no exception, containing two motifs of a vanished London (see below). The site was formerly occupied by school tennis courts, but was converted into a public space shortly after WWII. According to Camden Council, the neighbouring allotments (27 plots) have......