Peru and Colombia are prominent cases within museological debates on memorializing conflict. Following extended armed conflicts and Peace Accords in the latter decades of the twentieth century (Peru: 1980–2000; Colombia 1964–2016), attention to the countries’ transitional justice periods and the creation of memory sites has been widespread. In this article, we focus on visits in 2017 and 2019 to the Lugar de la Memoria, la Tolerancia y la Inclusión Social in Lima and the Museo Casa de la Memoria in Medellín to engage debates in Latin American studies on the politics and poetics of museum memory work. By focusing on how “truth” and multiple violences are encountered via museological tools such as metaphors, journalistic reporting, and audiovisual affective encounters in the sites’ permanent exhibitions, we reveal the nuances and tensions of difficult memory work when continuing conflict and state denialist politics are at play.