There are an awful lot of things to enjoy in this building. Here is a very small portion of it.

This is made of a series of photos from top to bottom, linking the circle above to the circle below.

Normally we don't 'see' these kinds of relations as we are too busy walking in a horizontal direction but its clear some people thought and worked days on this small space with those things in mind.

This is not a literal representation of the space and architectural features. Liberties have been taken. You can see this, for example, in the left vertical wall which has an odd and abrupt angle towards the top of the capital.

The circle at the center of the ceiling cupola is actually a light feature seen almost directly from below.