The Tiefer Stollen in Aalen is not only a visitor mine but also a therapeutic geological cave in which the air is purer than in the mountains or by the sea. Health mines have scientifically proven benefits and are ideal for alleviating asthmatic illnesses. In Aalen patients receive traditional respiratory tract therapy underground. Inside the cave the air is virtually free of dust and allergens, which soothes respiratory ailments and disorders of the skin. Comfortable loungers are provided so that patients just lie back and let the air get to work. The perfect complement to a health mine treatment session is a visit to the Limes thermal baths in Aalen, a Roman-themed wellness oasis where the water is 36.4°C and contains fluoride, calcium, sodium and sulphate – perfect for unwinding in the style of the ancients. Fachsenfeld Hall and many other attractions are within easy reach. The centre of Aalen is a maze of rambling lanes where visitors can admire timber-framed buildings and wonderful views of the mountains.