[katakomb]  Exclusives maps of Catacombs of Paris . Download here catacombs map : original editions and translated maps

[kwary] Quarries of Paris, underground works , inspection of the quarries, mushroom beds:  Complete history of Paris undergrounds …

[atlas]  Atlas of the General Inspection of the quarries, Boards IGC, topographic methods, historical files, complete documentations

[minimal]  Complete files of historical notes, cartographies, and raised of the quarries of Paris (in french).

[cube] Data base and files sets of themes of the quarries and catacombs. 4000 photos - 80 books extracts. (flash)

[gaya] Exploration of the grounds since the first ages. Discover geology, the sedimentary formation and the composition of the rocks.

[carbide lamps] The site of reference of carbide lamps and mining lamps. How to use, identify and restore the old carbide lamps.

[photographi] Full with photographs gathered by topics in pretty galleries updated regularly at the liking of the explographies…

[K-room] Constructions and installations under Paris.  Restoration and stone works.History of the K-room (flash)