Osaka City (Japanese: 大阪市／おおさかし Ōsaka shi) is a city located in the central part of Osaka Prefecture, Japan. Osaka is home to museums such as the National Museum of Art, Osaka and the Osaka City Museum of Fine Arts, which house artworks by artists from Osaka and around the world. Osaka is also a place where sumo wrestling is popular. Before the merger of Eastern and Western sumo in modern Japan, Osaka sumo had its own yokozuna, and the March tournament is still held in Osaka every year. Major traditional buildings and historical sites in Osaka City include Osaka Castle Main Tower, Naniwa Palace Ruins, Sumiyoshi Taisha, Osaka Tenmangu Shrine, and Shitennoji Temple. Among them, Sumiyoshi Taisha has been designated as a National Treasure of Japan. Osaka Castle Park near Osaka Castle is also a famous cherry blossom viewing spot, recognised as one of Japan's Top 100 Cherry Blossom Viewing Spots.