Caldarium is a term typically used in the context of ancient Roman architecture, referring to a hot room in a bathhouse. Synonyms for this term include a hot room, steam room, sauna, thermal bath, or steam bath. These synonyms all refer to similarly heated spaces where individuals can relax and unwind while enjoying the therapeutic benefits of steam and heat. They can be found in modern spas and wellness centers around the world, and offer a range of treatments and services designed to enhance physical and mental well-being. Whether you are seeking to improve your health, detoxify your body, or simply relax and unwind, a caldarium or one of its many synonyms can be the perfect refuge.