Elaborately carved column base at Diwan-i-am. The numbers refer to the number of times that each feature occurs: the column has twelve facets. I think that “8” refers to the octagonal hole to which the arrow points.
Red Fort, New Delhi

The vault over the entrance passage is faceted, and I believe goes by the name “Diamond Vault”.
I tried to make note of the creases or folds that make up the geometry.
Red Fort, New Delhi

Diwan-i-am has stone screens carved in geometric designs. Elongated hexagonal holes make up this pattern.
Red Fort, New Delhi

Studying the stone screen geometry at Diwan-i-am. These stone semicircles, and the openings between them, are the base units that makes up the screen.
Red Fort, New Delhi

Carved tracery in a stone screen, Diwan-i-am. The designers were able to use simple elements, semicircles in this case, to make a richly textured screen.
Red Fort, New Delhi.

Capital on a column, Diwan-i-am. The numbers refer to the number of times that each feature occurs around the column’s circumference.
Red Fort, New Delhi

More capital detail, Diwan-i-am. By counting the facets one can make a shorthand note about the design.
Red Fort, New Delhi