At the nexus of Euro-Brazilian cultural and political constructions of climate and Afro-Brazilian emancipatory conceptions of race, the plantation guided architectural connections between Brazil, Southern Europe, and Africa. As an archetype of tropical adaptation, hybridity, and racial miscegenation, Brazil’s plantation stirred ideals of futurity, or “new Brazils,” through spatial frameworks related to multiculturalism, territory, nation, and colony. This dissertation follows the prominent role plantation architecture played in the work of influential thinkers and architects of Brazil, such as Gilberto Freyre and Lúcio Costa, and its translations when Brazil represented some of the twentieth-century futuristic aspirations for Afro-Brazilian and Portuguese architects working in Africa. Colonial nostalgia inspired translations in Brazil’s climate-responsive architecture, both institutional and residential, promoted by the Rio de Janeiro School (the 1930s-1950s), the emancipatory Afro-Brazilian neobaroque architecture by returnees in Lagos, Nigeria (1910s-1930s), as well as the colonial architecture of white acclimatization and indigenous assimilation in Luanda, Angola, and Maputo, Mozambique (1933-1974). Thinking with and against the plantation framework and through these empirical examples of South-South exchanges and colonial articulations of tropical climate and racial mixing, I scrutinize existing models of multiculturalism, diversity, and inclusion in architecture.