A Jerusalem family ripping up its living room floor found a staircase lost for 2,000 years, leading to a large ritual bath carved out of bedrock. It took the family some years to call in the authorities and show them the discovery beneath their house, in the Jerusalem neighborhood of Ein Kerem. Throughout the interim, the family blocked off the entrance to the mikveh with wooden doors, and simply continued to live over it. When they did call in the Israel Antiquities Authority, beneath the doors, the archaeologists found the carved stone staircase leaving to a big mikveh, 3.5 meters...