https://goo.gl/maps/iTueRWcP7Vzd3HR58
The Philosophy of Joseon Dynasty was Confucianism. The Seowon, these were schools in those times. Most of them located in the wondreful places, surrounded by mountains and rivers. Every season has its charms, but personally I prefer to visit in autumn, in which I can enjoy the amazing colors of leaves. However spring is also nice with blooming flowers.
There were many Seowons in Joseon Dynasty but the above 9 Seowons preserve its own shape from the old times. Therefore they seems to be appointed by UNESCO soon as the world heritage. I hope it is realized in the near future.