The Fa Hien Caves are an enigma that has an international significance as an archaeological site that pertains to the Pleistocene era. Human remains were discovered by a Chinese monk, Fa Hsien, after whom the caves have been named. Major excavations were done in the 1960s, the 1980s and as recently as 2013. The fossils and the period they came from is what interests and drives visitors to this location. It is a notable and exciting historic site, especially if you are interested in learning more about the natural history of humanity.