Imagine big statues of two important leaders, Fidel Castro and Che Guevara, were taken away from a park in Mexico City.
The mayor said they were put there wrong, and also, some people think these men weren't so good because they hurt others.
Many people are upset about the statues' removal and are protesting loudly, even the President is unhappy too!
This shows that people have very different ideas about history, and sometimes arguments happen because of this.
