<p><br> 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.

Photograph by Giovanni Simeone/SIME-4Corners

A Tour Through Istanbul

See Istanbul photos in this gallery from National Geographic’s Ultimate City Guide for Istanbul.

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