Cool park bench - be careful, you might fall off

I can't figure out whether this is cool or sadistic.

just imagine sitting there on the 23. September. at 23.45 when suddenly the thing starts moving and you can't do anything about it. as you fall into your death you hope that your family will find you but the next morning when people walk into the park everything left of you is the fear in your eyes on the picture

OMG where is this?