1. The building has a large narthex extending the whole width of the church with three saucer domes over it.

2. The narthex is usually separated from the nave by columns or a pierced wall.

3. The church is high and light so that the vista from narthex to eastern apse is clear and uninterrupted.

4. Churches on this pattern have barrel vaults and particularly fine nave porches with narthex in front.

5. The western apse is of about the year 1000 and the narthex is later.

6. The church is constructed of thin bricks with wide mortar joints; its atrium has disappeared but the narthex remains.

7. Like most Roman churches, the building is of brick and is fronted by a porch and open narthex.

8. With some difficulty, he unglued his charge from the narthex floor, and pulled him along on the leash.