This is a mount Koya Shingon sect central temple built in 816 AD under the instruction of the great teacher and poet, Kukai. The main object of worship is known as Yakushi Nyorai, and it is registered as a World Heritage Site. This area is a sacred buddhist site located at the top of the mountain, with an altitude of 1000 meters, and around 100 temples are concentrated in this area. In the temples further into the area contain memorial towers to great figures such as Oda Nobunaga, Shinran, Date Masamune and others. One can also find the tombstone of Takeda Shingen here, as well as as as the mausoleum of Uesugi Kenshin, which is a building which also has the same function as a shrine.