The Sultan Ahmed Mosque (top), also called the Blue Mosque, represents the mournful character of Istanbul epitomized by Nobel laureate Orhan Pamuk. The faded facades in the old districts are now surrounded by a striking frenzy of expansion that threatens the city's heritage, environment and identity. (Associated Press)

The Sultan Ahmed Mosque (top), also called the Blue Mosque, represents the mournful character of Istanbul epitomized by Nobel laureate Orhan Pamuk. The faded facades in the old districts are now surrounded by a striking frenzy of expansion that threatens the city's heritage, environment and identity. (Associated Press)