The final section of the poem is the best-known and most-often discussed part of Constantine’s work. Indeed lines 437–981, which form the ‘description’ of the church of the Holy Apostles, have often been considered as if they formed a completely separate piece of work to the rest of the poem. This is not for the reasons that relate to the literary form of the work, but because the text appears to offer the possibility of reconstructing the plan, appearance and interior decoration of the church.