Armor stands

Hello everyone,
I am curious what armor stands can do.
I know they can have armor on them but is that all they can do? I havent played minecraft for awhile and im actually kinda curious as i have seen some custom maps have weapons near them that are propped against a wall or put on the wall

Its makes your armour look really epic! 8)

Yeah just be careful as they can’t be locked and don’t have logs so the armour can be stolen without a trace.