Workers move equipment into place for removal of the old heavy glass roof over the atrium at Vizcaya that will be replaced with a clearer canopy with a lighter look, part of a general upgrade at Vizcaya that's been ongoing for a couple of years. The roof was controversial when it was installed in the 1980's. May 29, 2012. Walter Michot / Miami Herald Staff

This is the old heavy glass roof over the atrium at Vizcaya that will be replaced with a clearer canopy with a lighter look, part of a general upgrade at Vizcaya that's been ongoing for a couple of years. The roof was controversial when it was installed in the 1980's. May 29, 2012. Walter Michot / Miami Herald Staff