The Sultan Ahmed Mosque (Turky .Istanbul)....(Turky سلطان احمد مسجد ( استنبول

The Sultan Ahmed Mosque is an historical mosque in Istanbul.
The mosque is popularly known as the Blue Mosque for the
blue tiles adorning the walls of its interior. It was built from
1609 to 1616. Like many other mosques. While still used
as a mosque, the Sultan Ahmed Mosque has also become
a popular tourist attraction. The design of the Sultan Ahmed
Mosque is the culmination of two centuries of both Ottoman
mosque and Byzantine church development. It incorporates
some Byzantine elements of the neighboring Hagia Sophia
with traditional Islamic architecture and is considered to be
the last great mosque of the classical period. The six minarets
were a matter of contention and a first, since four minarets
were the common maximum. Only after one more minaret
was added to the Masjid al-Haram, Grand Mosque, in Mecca
was the six minarets issue settled. Their colors have faded
and changed (red turning into brown and green into blue,
mottled whites) and the glazes have dulled. The tiles on
the back balcony wall are recycled tiles from the harem
in the Topkap Palace, when it was damaged by fire in
1574.
A heavy iron chain hangs in the upper part of the court entrance
on the western side. Only the sultan was allowed to enter the
court of the mosque on horseback. The chain was put there,
so that the sultan had to lower his head every time he entered
the court in order not to get hit. This was done as a symbolic
gesture, to ensure the humility of the ruler in the face of the
divine.