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.

Yup; it's a neat daytrip if you're in the area. But then Capt. Gillmore showed up with rifled cannons and showed why we don't use cannonballs any more. :-)

VMI has a number of cannonballs embedded in the turrets on the backside of Old Barracks as well. They're more placeholders now than anything, but were left in situ after General Hunter shelled and burned the then-arsenal during the 1864 Shenandoah Valley Campaign. One of my favorite points of intrigue as a cadet tour guide long ago.

Lewes Delaware has the Cannonball house which was struck in the 1812 bombardment. Delightful town and beach, worth a visit.