A frigidarium is a cold room found in ancient Roman baths, designed for cooling off after using hot baths. It typically featured a large pool of cold water, allowing bathers to refresh themselves. The frigidarium was an essential part of the bathing process, promoting relaxation and invigorating the body. In Roman bath complexes, the frigidarium was often situated between the hot room, or caldarium, and the warm room, or tepidarium. This layout facilitated a sequence of bathing that enhanced the overall experience. The frigidarium exemplifies the Romans' advanced understanding of hygiene and social leisure.