Wall paintings in Lascaux Cave were damaged by carbon dioxide exhaled by visitors and mold carried in with visitors and the cave has been shut down, and it is a lucky case in whereby restoration begun before it almost ruined.
ラスコー洞窟は観覧者の吐く息の二酸化炭素や持ち込んだカビ類で洞窟壁画が傷み、閉鎖されているが、これは保存が間一髪で間に合った幸運な例である。