Here's a great page of ZOOM views of Byzantine monuments in Constantinople - Tsargrad - and elsewhere.
Virgin and Child in the Apse of Hagia Sophia
Here's a page dedicated to this famous mosaic in the apse sem-dome of the great cathedral church of old Byzantium. It dates from the original redecoration of the church after iconoclasm ended.
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