To the Bath Cave: A Thermal Bath Gets a Modern Translucent-Concrete Grotto
In the German city of Bad Staffelstein, a manmade “cave” of sorts beckons leisure-seekers to a therm al bath fed by Bavaria’s hottest and most powerful saltwater spring. Obermaintherme is a 15,000-square-meter (161,500-square-foot) bath hall whose pool previously boasted a natural-stone cave feature with artificial palms for decades. But in recent years, the saltwater pool and…