Blue Mosque
The Blue Mosque, formally the Sultan Ahmed Mosque, was completed in 1616 as a statement piece meant to rival Hagia Sophia across the square, and it remains one of the most photographed buildings in the world. Its exterior cascade of domes and six slender minarets defines the Sultanahmet skyline, while the interior earns its nickname from more than 20,000 handmade İznik tiles in blues and greens that climb the walls and swirl through floral and geometric patterns. Natural light pours in through over 200 stained-glass windows, and a forest of massive fluted columns supports the central dome. It remains an active place of worship, so visitors enter through a separate tourist entrance, remove their shoes, and dress modestly, with scarves and wraps available at the door for those who need them. The mosque closes to sightseers briefly around the five daily prayer times, which is worth planning around if you want unhurried time inside. Sitting directly across a small park from Hagia Sophia, it's the natural second stop on any walk through Sultanahmet and offers a striking contrast: where Hagia Sophia feels ancient and layered with history, the Blue Mosque feels expansive, luminous, and unmistakably Ottoman.
Blue Mosque FAQs
Yes, entry has generally been free as it remains an active mosque, though donation boxes are present and policies can change over time.
Modest dress is required: shoulders and knees covered for everyone, and a headscarf for women; scarves and cover-ups are typically available to borrow near the entrance.
The mosque generally closes to tourists for a short period during each of the five daily prayers, so it's best to time your visit around those windows.
Most people spend 20 to 40 minutes inside, since it's mainly one large open prayer hall to view.
The nickname comes from the tens of thousands of blue-and-green İznik tiles covering the interior walls, even though its official name is the Sultan Ahmed Mosque.
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