Among Longmen's wealth of world-famous treasures are flying Apsaras as well as fine works of Chinese calligraphy, represented by the 20 Longmen Calligraphic Samples . These are 20 pieces of calligraphy deemed perfect and correct representatives of the time they were created.Enshrined in a total of 2,100 cave-temples are 3,600 stone inscriptions and over 100,000 large and small Buddhist statues. The 17m high statue of Vairocana in Fengxian Temple is the most representative of the trove.