Royal Air Force (aka RAF) base located in Cambridgeshire
More info at wiki: https://en.wikipedia.org/wiki/RAF_Upwood
It was my first time to see real tank (though not in use)!
Other than the cool tank and creepy basement, there weren't much to see.
It was also shame there was only childish, foolish graffiti.
Whoever done the graffiti, he really hated John I guess.
I've just found out from wiki that the place is used by paintball players!
I'm glad I didn't meet any of them in there.