EntityQ2631941· pop 15· linked from 49 articlesOpus quadratumSign in to saveRoman masonry using parallel courses of squared stone of the same heightConnectionsRomeEntityRoman EmpireEntityarchaeologyEntityInternational Standard Book NumberEntityAncient RomeEntityVitruviusEntitymortarEntityancient Greek architectureEntityRoman concreteEntityMausoleum of TheodoricEntityRoman aqueductEntityRoman bridgeEntityEtruscan architectureEntityCategoriesAncient Roman construction techniques