I find that I am always somehow going to a museum when I travel. I think it's the air conditioning and knowing that no one will really go there attracts me. I hate crowded areas. There are just too many tourists in the main shopping districts, I need to hide and rest in a museum. As I was on my way to Osaka Castle, I might as well visit the History Museum which is just across the street. I bought the package ticket which allows me to enter the exhibition in the museum and the Tenshukaku Castle. I think it costed me 900 yen.
I was only able to look through level 7 to 10. Each floor has different theme of exhibition.
Address: Japan, 〒540-0008 Osaka Prefecture, Osaka, 中央区大手前4−1−32
Osaka Museum of History is located across from the southwest corner of Osaka Castle Park. The closest station is Tanimachi 4-chome Station on the Tanimachi Subway Line and Chuo and Tanimachi Subway Lines, a five minute walk from the museum.
It is point I on the map below.