This square is where Fidel Castro gave his final, rousing public speech in July 2006 before being taken ill and stepping down as president. The monument to the Cuban greats here features Carlos Manuel de Céspedes, Antonio Maceo, Máximo Gómez, Perucho Figueredo and, subtly placed left of center, Fidel: it's the only monument he appears on in Cuba.
It's six blocks northeast of the bus station.