Disappearing guns, disappeared
Elaborate brickwork within Forte Copacabana outlines the former location of a pair of coast artillary guns. These secondary batteries, in "disappearing" mounts, supported the larger 12-inch guns in their unsual revolving turrets. 8th International Conference in Nursing Informatics, Rio de Janeiro, June 2003 20030622 1/100 sec at f / 8.0 Canon PowerShot S300 © Kathleen G. Charters