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The fluted minarets and domes of Istanbul's commanding Sultanahmet Mosque, more commonly known as the Blue Mosque, overlook the Sea of Marmara.</p>
Blue Mosque
The fluted minarets and domes of Istanbul's commanding Sultanahmet Mosque, more commonly known as the Blue Mosque, overlook the Sea of Marmara.
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A Tour Through Istanbul
See Istanbul photos in this gallery from National Geographic’s Ultimate City Guide for Istanbul.