The most famous hoabinhian cave of Xom Trai (Lac Son, Hoa Binh, Vietnam)
Studio via modern X-ray film to controle relationship between facial sorf tissues and facial bone (Project : Facial reconstruction for prehistoric human skulls)
The Pham Huy Thong Museum with it's laboratories in Yen Hung (Quang Ninh)
The Dongson man with war axe on his shultern as handle of a bronze dagger of 2300 years old.
A Bat Trang ceramic vase with special design of flutting scholar (Ceramic collection of Pham Huy Thong Museum)