It's very close to Hanoi Palace Museum. I got off the No. 18 bus and saw it. You can see the Forbidden City on your way up. This is the place to guard! The stairs are steep, but it's really fun! It's supposed to be a ticket, but I got in. Actually, when I came, I didn't know it was the Revolutionary Museum! All I know is that this is a museum. ~Hahaha~