Angela A.
Google
Since I liked Tokugawa Shogunate history, I was really happy to visit this museum. It has English explanation on each exhibit which was great for us foreigners. I bought the entry ticket in a bundle with the Tokugawa Garden ticket, and if I remember correctly it's about 1,500 yen. Be careful not to take a video because they prohibit you to, but taking picture is OK as long as you do not use flash and only use a smartphone.
I recommend you to visit this museum if you like Japanese history like me.