Published September 20, 2017 at 4495 × 2976 in Grand Mosque of Kairouan The 4th holiest mosque in the world – after Mecca, Medina, and Al-Aqsa – is an imposing structure with thick buttressed walls. (Aug 2017) ‹ Return to post Leave a Reply Cancel replyCommentNameEmailWebsite Turn on JavaScript to leave a comment. Δ This site uses Akismet to reduce spam. Learn how your comment data is processed.