Why can't Romans do without this kind of bath? The answer can be found by studying the Karakala baths. These baths were built by order of Emperor caracalla around 200 AD, and now all Romanesque baths are based on them. They are also one of the largest baths in the world, which can accommodate 65,438+0,600 people. Under the huge dome, there is a swimming pool, sauna pool and cold pool, surrounded by exotic plants, exquisite carvings and ingenious mosaic patterns. The warm water bathroom is the largest of all bathrooms, with a length of 170 feet and a vault height of 125 feet. The heating system of the bath adopts the unique invention of the Romans-the heating system of the kang, which uses hot water to heat the floor. In addition to bathrooms with different temperatures and uses, there are libraries, gymnasiums, gardens and conference rooms in the baths, all decorated with exquisite murals. Bathrooms are an important part of Roman social life, and both beggars and emperors often visit them.