To celebrate Havana’s 13th Biennial—a month-long celebration of art that takes place every other spring—five exhibitions are now up. Hosted by Havana’s Museo Nacional de Bellas Artes, the shows take stock of Cuba, its history and evolving identity, through work by contemporary artists such as Santiago Rodríguez, Douglas Pérez, and Susana Pilar Delahante. —J.V.