Few artworks are better known for action than the Bayeux Tapestry: clinker-built ships cutting the waves, prancing horses, Norman soldiers feasting on chicken on the eve of the Battle of Hastings, and the arrow in King Harold's eye that ended centuries of Anglo-Saxon rule. But step back from the drama and you'll spot something quieter and just as fascinating — the 33 buildings stitched across the embroidery, from grand palaces to humble two-story houses.

For architectural historians, these buildings are a rare window into what the 11th-century world actually looked like on both sides of the English Channel. The trick is that the images are formulaic, general impressions — the normal way artists of the era drew buildings. No attempt was made at realism. As one historian puts it, the conventions of the time clearly preferred abstraction over naturalism.

Take the opening scene, where King Edward the Confessor sends his brother-in-law Harold to Normandy. Edward sits enthroned in a grand hall with turrets on the corners, and the outer wall is cut away so we can see inside. Beside it, the entrance porch is rotated a quarter-turn, just so the viewer can admire it. To tell a story, the artist decided, a grand entrance and great hall were enough.

Even the famous abbey of Mont-Saint-Michel appears only as a simple building perched on a rock — a nod to the rocky setting, but useless for reconstructing the real 11th-century monastery. Most buildings on the tapestry, just like in real life, were made of timber. Stone was reserved mainly for churches, and none was bigger than Westminster Abbey, by far the largest building shown. Construction began under Edward the Confessor in the grand Norman style, and the work was finished only after the building was consecrated on December 28, 1065.

On the tapestry, Edward's funeral procession approaches the great church, which is drawn with three distinct parts: a nave with five arches and eight windows above, a towering square tower, and a choir whose massive walls hint at stone vaulting. Beside it, a freestanding tower holds a ladder where a workman positions a weathercock — likely a nod to the abbey's 1065 consecration. The difference in scale is obvious when you compare it with the modest church at Bosham, where Harold prayed before sailing to France. Even though Bosham was an important Anglo-Saxon church, it was small next to Westminster — just as most real buildings of the time were.

Where the tapestry does break new ground is in its castles. Contrary to claims that its images were copied from old manuscripts, the castle drawings were up to date. Stone castles were just emerging to hold conquered land, but for fast warfare, armies preferred the motte-and-bailey — a man-made mound topped with a tower and wooden palisade, circled by a moat. The 12th-century Norman verse history Roman de Rou even reports that William the Conqueror's army brought the wooden parts of such castles with them, readymade. The tapestry stitches five of them: Dol, Rennes, Dinan and Bayeux in France, and another across the Channel.

Beneath all the battle and bloodshed, a trained artist's hand quietly drew not just a story, but a map of medieval life. Some scholars believe the work came from England, made by nuns of Barking Abbey in Canterbury, whose needlework matches other 11th-century English embroidery. What we know of the makers is speculation — but the buildings they stitched still tell us, tile by tile and tower by tower, what the world really looked like.