This page from the Hagia Sophia website is about the famous 15th century image of angel on the left side of the apse whose face was recently uncovered
Church Fathers - Tympana of Hagia Sophia
On either side of the nave of Hagia Sophia are great tympana, most of the mosaics there have been lost, but a few fathers of the church survive
Imperial Bedroom
Portrait Hall
Mauve Room
Maple Room
Aleksey's Bedroom
Nicholas's Study
Aleksey's Playroom
Formal Reception
Balcony View
Aleksey- Balcony
Children-Mauve
Nicholas's Bathroom
Alexandra- Mauve
Nicholas's Reception
Tsarskoe Selo Map