Assassin's Creed: UnityGoofs
Errors in geography
During an early part of the game, Arno visits the Sainte-Chapelle cathedral just North of Notre Dame. While the inside of this cathedral is visually stunning and very close to actual depiction, the story shows Arno jumping through a hole in the floor, to enter the assassin's guild HQ. In actuality, the church area shown is on the second floor with another room underneath. He would have jumped through the second story floor, to the first floor level (inaccessible in the game), not an underground area.