Low light situation, narrow places, need of a lot of depth of field.
Here the technical situation.
But more important is the rendering of a reality that only the eye can perceive, a 180 degrees reality made of "being there".
More than a picture is a participation to that reality.
I have always liked BW photography, since my beginnings, and I think panorama images very strongly can offer the expressiveness I seek in these interiors.
All photographs done without the use of a tripod and in natural light.