A phote from above. Not my own.
https://www1.wdr.de/radio/wdr2/themen/raus-in-den-westen/wunderland-kalkar-112~_v-HintergrundL.jpg
https://blossom.primal.net/33e01073e42f28244143a8256629bab5d97a065a1...
It's very cool that they made an amusement park on it, but still the last picture looks very depressing with these ugly government-style buildings.