This talk delves into the international debate concerning public spaces, focusing on how memorial disputes illustrate the tensions between official and dissenting memories. It advocates for a genuine decolonization that challenges structural racism and redistributes power in the construction of urban memories. The speaker, Camila Opazo Sepúlveda, is a feminist and anti-racist activist, recognized for her expertise in post/decolonial studies. She is a representative of the ICOM's working group on museum decolonization in Spain. Her work primarily revolves around the construction of colonial memories through material cultural heritage, such as monuments and colonial collections in Barcelona and other postcolonial contexts. Recently, her projects merge heritage, museums, and memory studies with art, poetry, and performance within public spaces.