111 workers who built this structure recounted their experiences in a series of letters discussed by a Julie Greene book and the documentary Box 25. The existence of a secret plan to destroy this structure was confirmed by the autobiography America’s Prisoner. People who died in 1964 riots that tore down the “Fence of Shame” around this structure were commemorated on Martyrs Day. It’s not a tower, but Gustave Eiffel was prosecuted in a bribery scandal during (-5[1])an unsuccessful attempt to build this structure. (10[2]-5[1])Walter Reed’s medical advancements controlling yellow fever enabled the construction of this structure, (10[2])which the Torrijos–Carter treaties transferred from US control in 1999. For 10 points, what man-made waterway connects the Caribbean to the Pacific through a namesake (10[1])Central American country? ■END■ (10[1])