Jeah. There are a lot more ideas for all this Flak-Towers that had survived the war.
A small gun tower at the town of Lübeck was transferred into a medieval looking tower with an italian restaurant. An other tower was transferred into a climbing park. And so on.
That is much cheaper than destroying this bunkers.
Some years ago they had destroyed the zoo bunker in my town. It was a disaster for the town and the destruction company...
They need much longer for destroy this tower than it was planed. They need much more explosives than it was planed.
And at the end the costs were exploded xDDD
Out of my view it is cool when a town found a nice way to deal with this bunkers ;D
May the force be with you.