The carvings of cattle, swans, insects, flowers and fruit all portray a message of peace and prosperity. The altar originally sat in the Campo Marzio somewhere around the Piazza of San Lorenzo in Lucina but was destroyed when Rome fell to the Barbarians. Mussolini ordered the reconstruction of the altar in the late 1930s, assembling the fragments from excavations and pieces scattered in European museums, and housed it on the banks of the Tiber. The newly restored structure designed to display the Ara Pacis was by Richard Meyer. The protective structure made from travertine marble, large glass panes and metal bars has received a mixed, and at times vociferous, reception.