This Exquisite “Underground Cathedral” Has Been Carved Entirely Out of Salt
When you imagine places of worship, traditional structures like Gothic churches, colorful mosques, and dazzling Buddhist temples likely come to mind. If you've ever visited Wieliczka, Poland, however, you know that not all holy buildings follow this formula. In fact, some—like the the “underground cathedral” in the Wieliczka Salt Mine—aren't buildings at all! Nestled over 1,000 feet below the Polish town, this subterranean shrine dates back to the Middle Ages.