Osaka Castle is another well known landmark of all of Japan. It is mainly renowned for it's history of unifying Japan back in the 16th century. Because of the great update in technology, Osaka Castle is one of the only castles around to use the holographic devices. The Holograms have been used to create depictions of the historical events that had taken place inside Osaka Castle. It is seen now as more of a museum area, but still has it's recreational areas around it.