Aoi Matsuri

The celebrated on May 15 is one of the three main annually festival held in Kyoto, Japan. Aoi Matsuri dating back to the 7th century. It became very popular in the Middle Ages, as the festival to top all others. During the festival, emissaries leave the Kyoto Imperial Palace and proceed to and then to , two shrines in the north of the city. Participants wear costumes of the Heian period.
See more at Wikipedia.org...