101 meters below ground on the 2nd level, the chapel is 54 meters long and 15m. wide. Constructed in 1896, designed by architect Józef Markowski, carved out of salt rock.
The chapel has been ornamented by miners who taught themselves the art of carving in salt. There are altars, wall friezes and statues all around.
Also the crystals of the chandeliers are made from rock salt that has been dissolved and reconstituted to achieve a clear, glass-like appearance.
The chapel is still used for regular Sunday worship.