The Blue Mosque
The Blue Mosque's odficial name is Sultan Ahmed Mosque. I is an Ottoman imperial mosque, constructed between 1609 and 1616. It is situated near Haga Sophia. Between the mosque and Hagia Sophia is the Sultan Ahmet Park.
In 2006, Pope Bewnedict XVI visited the Blue Mosque. From Wikipedia:
" It was only the second papal visit in history to a Muslim place of worship. Having removed his shoes, the Pope paused for a full two minutes,,eyes closed in silent meditation, standing side by side with Mustafa Çağrıcı, the Mufti of Istanbul, and Emrullah Hatipoğlu, the Imam of the Blue Mosque."
The pope “thanked divine Providence for this” and said, “May all believers identify themselves with the one God and bear witness to true brotherhood.”
Wikipedia: The Blue Mosque, Ahmed I, Ottoman Empire,