Lascaux

A facsimile of Chauvet Cave, on the model of the so-called "Faux Lascaux", was opened to the general public 25 April, 2015. It is the largest cave replica ever built worldwide, ten times bigger than the Lascaux facsimile (wiki)
See en.wikipedia.org

“The Exhibition Hall of the Royal Tombs in Songsan-ri displays a replica – reproduced in precision – of an ancient tomb closed to the public for reasons of protection. Visitors can learn about the excavation done for the royal tombs, interior appearance of the tombs, and Baekje culture of the time.” - Nomination File