The youngest American republic was the last nation to dedicate a pavilion, on July 30, 1915. Its commissioner-general, Alejandro Briceño, received the bronze plaque from Vice-President de Young. Yet for all its ceremony the pavilion "remained empty and closed throughout the season." Panama held back its exhibits for an exposition of its own. Its site had been dedicated back on October 10, 1913, the day of the celebration that marked the removal of the Canal's last obstacle, the Gamboa dike.
It stood in the cluster of Central American pavilions on the southern edge of the foreign section, beside Honduras and Guatemala, with Norway above it to the northwest and Greece to the west. Todd does not describe its architecture, but his plate shows a small square pavilion under a dark dome, with tall arched windows and paired Corinthian columns at the entrance.