The Tower

Went out at lunchtime to get a closer look at the tower that you can see from outside our office. Only trouble is, it's in a built up area so it's difficult to find a spot to get a good picture from (although I did see several other blip opportunities in the meantime)

I originally thought the tower was square (first blipped it here ) but as you get closer it's obviously not.

Looks like some kind of old water tower. I'd love to know what it's original purpose was.