Turkey Action & Adventure + Historical Pictures

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Once a church, then a Byzantine cathedral, later a mosque and now a monument, this iconic building is a national treasure.

Once a church, then a Byzantine cathedral, later a mosque and now a monument, this iconic building is a national treasure.

Once a church, then a Byzantine cathedral, later a mosque and now a monument, this iconic building is a national treasure.

This 16th-century mosque is not only the largest active mosque in Istanbul, but also one of the city’s most symbolic.

Once a church, then a Byzantine cathedral, later a mosque and now a monument, this iconic building is a national treasure.

Once a church, then a Byzantine cathedral, later a mosque and now a monument, this iconic building is a national treasure.

One of the most beautiful surviving Byzantine churches, with interiors laid out in fine mosaics and frescoes, has been converted into the impressive Kariye Museum.