People have been drawn to hot mineral springs since ancient times. Even 2,000 years ago, the Romans knew that a bath in thermal water is not only relaxing, but also incredibly healthy. We too know about the beneficial effects of thermal water, without which the best European resort towns would never have developed in the first place. European resort towns and thermal baths have a long tradition. In 2021, eleven resort towns in seven countries were even included in the UNESCO World Heritage List under the title "The Great Spa Towns of Europe".