Not a tennis ball but a fruit

I SAW THIS STRANGE FRUIT WHILE I WAS TAKING A TROLL IN ONE OF THE PARKS IN YEREVAN ARMENIA. I WAS VERY SURPRISED TO SEE IT, IT LOOKED LIKE A TENNIS BALL. I LEARNED THAT THIS IS ACTUALLY AN OSAGE ORANGE, THIS TREE BEARS ORANGE - SIZED FRUIT, A LURID NEON GREEN IN COLOUR, HIGH UP IN THE TREE. THE AUTUMN WINDS OFTEN BRING THE FRUITS DOWN SO THE GRASS BENEATH BECOMES LITTERED WITH THESE LARGE, DEEPLY WRINKLED, GREEN TENNIS BALLS, OR AS THE HORTICULTURAL STAFF CALL THEM, PICKLED GARDENERS BRAINS! #travel