Secretary Gates and Colombian Minister of Defense Silva tour Quinta Bolivar. Secretary of Defense Robert M. Gates and Colombian Minister of Defense Silva tour Quinta Bolivar, home of the father of Colombia Simon Bolivar, after meeting with President Alvaro in Bogota, Colombia, on April 15, 2010. SHARE IMAGE: Download Image: Full Size (0.08 MB) Photo By: VIRIN: 589780-Q-CNI73-847.jpg Photo Gallery