Filled with concrete just to make sure you peasants don't try to use it to storm the Bastille one day?
Of course not, it's to prevent kiddies falling in and injuring themselves.
“There are invisible rulers who control the destinies of millions. It is not generally realized to what extent the words and actions of our most influential public men are dictated by shrewd persons operating behind the scenes.”
Edward Bernays, 1928
Much changes, much remains the same.
Mr Hewes has done just that in England resurrecting a Chieftain AFAIK look him up has a few AFV's not as many as the Weald collection but a few.