High, narrow opening with a triangular arch.

Occurs in pairs flanking the facades of Romanesque churches. Could be lit at night to guide pilgrims.

Bond dedicated to large stones laid in courses of equal heights

Flat shale or limestone used as flagstones or roof tiles .

Large room upstairs in the lay building in an abbey, often with two naves divided by a row of pillars.

The arrangement of a building on the ground

Slightly projecting, flat pilaster on the outside of a building.

A flat horizontal beam which spans the space between two supports.

Flat, slightly projecting moulding.

Initially a wooden palisade which encircled squares or fortified castles. Then, land between the inner and outer enclosures. Said area was the stage for jousts and tournaments.

Segment of a circle cut into an arch.

"turrets"arose in the medieval period in castles and churches, usually for stairs or as watch towers, in which case they could also be called "échaugettes".