Moroni causes replicas of the title of liberty to be placed on “every tower which was in all the land, which was possessed by the Nephites.” In each of the Nephite cities, this banner was placed in a location where it was easily visible. In our Mesoamerican setting for these events, the towers would be the stepped pyramids.
These were not simply higher locations, but very symbolic locations. They were the places where the eyes of the people would normally turn as the symbols of their society. Placing the banner in that location provided a means of visual communication of the message to all of the people in Nephite lands. This would have been particularly important in a society with limited means of mass communication. The banners on the towers was Moroni’s way of broadcasting the message.