Here we are at the lowest level of the network, in which the quarry caves communicate.

You are here.

All but three of the Kings of France are buried in the basilica.

The workers have mounted a wall and scaffolding have large green tarpaulin over which water flows continuously. Thus, a lot of construction dust are recovered. Note that right side is a maternity ward.

The beginning of the first mushroom area. The bags are also damaged the door.

This room is one of the largest of the underground quarry sand. Its length is over 20m. The pillars of wood supporting structures are now as fragile as paper.
However, the ceiling is very strong. While the underground quarry remains wet sand stays compact. There was very little collapse since I know her.

The gypsum quarries are often more fragile than those of chalk or limestone and require (although it is only forest above) frequent consolidations.

Despite appearances, which seems to be stone blocks are blocks of sand!

On the top of the Lantern tower, in the center of the cathedral. The main towers behind, in the front of the cathedral are empty.

Apart from rust, these wagons are superbly preserved, they roll very well!