Omar ibn alkhatab’s mosque It is one of the oldest and most important archaeological mosques in the north of the Arabian Peninsula and is one of the important monuments in the Jouf region and in Saudi Arabia in general. It follows the importance of the mosque from its planning as it represents a continuation of the pattern of planning the first mosques. Recall the planning of the mosque of the Prophet in the city in its early stages, as well as the importance of this mosque to be one of the oldest mosques that have not changed the planning.