Festival del Aniversario del Museo Nacional in San José
The Museo Nacional de Costa Rica, founded in 1887, marks its anniversary each year with a free festival on the Sunday closest to May 4, running roughly 9 a.m. to 4 p.m. at its historic former-fortress building beside the Plaza de la Democracia, combining artistic presentations, concerts, workshops and craft and food stalls with open access to the museum's permanent collections.
The Museo Nacional de Costa Rica, founded in 1887 and the oldest museum in the country, marks its founding date of May 4 each year with a festival held on the Sunday closest to that anniversary, running from roughly 9 a.m.