My camera isn't good for night scenes and so I don't take many, but the city's parks are full of nacimientos (nativity creches) and often the statue of the baby Jesus is missing so that families can put their own baby or smaller child in the cot and photograph him or her. Many of the creches are less Disney-like than this.
The parks have street sellers, street dances, musicians and mimes. It's a festival every Saturday and Sunday night. I think these photos turned out well enough that I'll try to take more.