It gets worse! Have a look at some of these links (takes you to an Urban Exploration site - a bunch of guys who (sometimes legally, sometimes not) gain access to disused sites (not just military) to photograph):
RAF Binbrook
RAF Newton
RAF Upper Heyford, and
again, and
again
RAF Upwood
RNAS Portland
RAF Manby
Cambridge Military Hospital, Aldershot
Very sad!