Originally Posted by
RichardInSF
I was not very impressed with Osaka castle. As I recall, it is modern and made of concrete. If I got that right, you might want to skip it in favor of spending more time on other things.
That's a good idea if queues are too long, I will not bother going in. If I have extra time, maybe I will head to Osaka Aquarium Kaiyukan as several people said it's amazing and the best in the world. Will most likely go on Monday morning to avoid crowds.