colieure

Updated: July 23, 2025

Let us now find our way out of these labyrinths, and reascending to the surface of the soil, pursue our examination of the Observatory. In a large room on the first floor is traced the meridian line, which divides this building into two parts. Thence, being extended to the south and north, it crosses France from Colieure to Dunkirk.

Francis W. Blagdon - Paris as It Was and as It Is