The main image is the façade of the Coptic Museum in Cairo. Also included are details of said façade.

I assume that the cross above the main entrance is an early Coptic cross. (Please click on images for a fuller view.) This cross is also flanked on either side with other similar crosses, placed above the windows. It's amazing to me how much these early Coptic crosses are so similar to the eight-pointed Maltese cross.

The Coptic Orthodox is a separate church from the Orthodox Churches of Greece and Turkey and the Catholic Church in Rome, having split from the main stream of Christianity early in its history on account of a theological disagreement about the nature of Christ and the Holy Spirit.