When it comes to history, Osaka has one of the most fascinating ones of all. See the best of Osaka and learn about its rich past. First, visit the stunning Osaka Castle, built by Toyotomi Hideyoshi, a well-known warlord who ruled the country in the late 16th century. Then, it's on to the revered Sumiyoshi Taisha, the guardian deity for sailors and deity to bring prosperity. See Osaka and all its wonder and glory.