Cranfield tower was built in 1959 I believe & it certainly feels like it (& looks it too). Its one of them structures as you drive toward it you either love the eccentricity of it or you loath it with a vengance.
I'm more the latter. Its cold in the winter, slightly damp, dirty, falls apart at regular intervals and has blind spots - not to mention the stairs of death at the back where the only thing stopping plummetting off the roof is a sheet of glass... exciting eh!
Now the airfield has grown up and things have moved and become defunct (main runways etc) its' now in the wrong place - nowhere near the centre of the runway and with limited visibilty of the local area.
Good website for reference (although nothing to do with me) is:
http://www.controltowers.co.uk/C/Cranfield.htm
