(The children's museum), Antigua Penitenciaría (the old prison). Tel. 258-4929. M-F 9:30AM-3:30PM, Sa-Su 10AM-4PM. Entrance fee ₡600 for adults and ₡300 for children. This is an edutainment museum, and it was designed for Costa Rica's children, all the exhibits are in Spanish only. Not recommended as a visit, except when the Auditorio Nacional is hosting a concert or art gallery.