Stockholm also has famous canon balls lodged on buildings in the old town: https://www.atlasobscura.com/places/stortorget-cannonball
They are supposed to be from the Blood Bath that happened there in the 16th century when Swedes and Danes still enjoyed killing each other frequently, but no wall survives this long with a metal ball in it, hence that’s apparently a fake thing by some smart 18th century building owners.
Yeah nobody who's ever seen a ballistic object hit anything is going to mistake that first image for a cannonball that was actually fired at the wall.
> The cannonball crashed into the church and went through a first wall. It then ended on the altar of the Chapel of the Virgin. [...] The cannon ball was walled into the left wall of the Chapel and a commemorative epigraph was added to it.
It wasn't showing the wall where it had crashed through, it's showing where the ball has been mounted into the wall for display.
The Aurelian wall looks like a ball was grouted in as well.
my uncle is a highlander. he was there and he says its a real one