Agrippa built up the area around the complex to include gardens with nice walks and colonnades with resting places and shelters from the sun. Wright claims that “The total effect was somewhat like the Athenian "gymnasia", the Lyceum, or the grove of Academus, but on a very much larger and more sumptuous scale.” That the bath itself could have served a multitude of functions, serving as a type of club with “a restaurant, a reading-room, and a bathing establishment with every kind of bath then known, hot, tepid, cold, vapour, and shower”. Indeed, it would appear as though bathing had begun to become more complex around the time of the late Republic going into the early Empire, introducing three different types of rooms and pools: The "frigidarium" (cold pool), the "tepidarium" (or lukewarm to room temperature pool), and the "caldarium" (hot room and pool). Whether or not the "caldarium" within the Baths of Agrippa contained window glass to sufficiently heat up the room and keep the heat in, as was the case within the Baths of Trajan and other later examples of Imperial bathing facilities, remains unknown due to the scant archaeological evidence of the site.