'''Osaka''' (大阪市, ''Oosaka-shi'') is an important [[Japanese]] city and port, located in the main island of Honshū. It is part of the Osaka - [[Kobe]] - [[Kyoto]] metropolitan area. Osaka has a population of 2.5 million. Osaka was Japan's main city before the rise of [[Tokyo]] in the late 19th century. It remains the #2 city with longstanding rivalries with Tokyo.
The famous Osaka Castle, started in 1583, has a museum that documents Toyotomi Hideyoshi's life and the history of the castle.