A big underground Gothic cathedral, completely carved in salt mountain

A big underground Gothic cathedral, completely carved in salt mountain. Archic arches of 200 meters high are covered with ancient frescoes from mineral dust. Instead of stainedglass windows natural crystalline formations that pass refracted light from the surface. Thousands of candles in iron candelabra cover the procession of wrapped figures in dark clothes. In the center is the manmade lake of mercury, reflecting the inverted cathedral. Filmed on Hasselblad H6D-400C with 30-second exposure, ISO 800. Style: mystical hyperrealism.