Arakawa, Tokyo Arakawa, Tokyo Arakawa has sister-city relationships with Donaustadt in Vienna, Austria, and with Corvallis, Oregon, U.S. Domestically, it has similar relationships with nine cities, towns and villages. As of May 1, 2015, the ward has an estimated population of 208,763, and a population density of about 20,550 persons per km². The total area is 10.16 km². Arakawa is in the northeastern part of Tokyo. The shape is long and narrow, stretching from west to east. The Sumida River forms the northern boundary. The ward is surrounded by five other special wards. To the north lies Adachi; to the west, Kita;
Capital Cities and Tombs of the Ancient Koguryo Kingdom main Goguryeo capital moved to Pyongyang. Wandu contains many vestiges including a large palace and many tombs. The capital cities of the Goguryeo are an early example of mountain cities later imitated by neighbouring cultures. The system of capital cities represented by Gungnae City and Wandu Mountain City also influenced the construction of later capitals built by the Goguryeo regime. The capital cities of the Goguryeo represent a perfect blending of human creation and nature whether with the rocks or with forests and rivers. The site includes archaeological remains of 40 tombs which were built by Goguryeo, which was founded