 The fact that the meridian passes near the "Inverted Pyramid" is also noted in "Le guide du Paris maçonnique" ("Guide to Masonic Paris") by Raphäel Aurillac, who likewise ascribes some deeper, esoteric significance to this.In the Louvre area, the meridian line marked by the Arago medallions actually runs through the museum and the great courtyard at a spot considerably to the east of the "Inverted Pyramid".The medallions in the museum are behind ticketed access points, while the "Inverted Pyramid" is located in a public mall next to the museum.