The little windows for today are on the facade of the Basilica of St. Lazaro. You can see some of the windows of "modern Rome" in the background.
Merciful God, who sent your messengers the prophets to
preach repentance and prepare the way for our salvation:
Give us grace to heed their warnings and forsake our sins,
that we may greet with joy the coming of Jesus Christ our
Redeemer; who lives and reigns with you and the Holy
Spirit, one God, now and for ever. Amen.
Collect for the Second Sunday of Advent
From the Book of Common Prayer