The Kyoto International Conference Center, abbreviated as ICC Kyoto and previously called the Kyoto International Conference Hall, is a large conference facility located at Takaragaike, Sakyō-ku, Kyoto, Kyoto Prefecture, Japan. The Kyoto Protocol was signed in this hall. The center was designed by architect Sachio Otani to an unusual hexagonal framework, resulting in few vertical walls or columns, and opened in 1966 with an addition in 1973.