Brendan L.
Google
Old place but definitely worth a visit If you're into the history of the Vietnam American war and Ho Chi Minh.
A fairly large range of US and Viet/Soviet/Chinese Tanks, Artillery, Vehicles and weapons on display inside and out.
Entry is cheap and even cheaper on line.
Make sure you check out the Ho Chi Minh Museum in a different building to main museum along with a replica of his house.