Reporter Matthew Brunwasser toured a new exhibition in Istanbul, Turkey examining the technological innovations of Muslim civilization.

With thousands of mosques broadcasting the call to prayer five times a day, it only takes one muezzin singing with a froggy voice to make life miserable for neighbors.

Every other Wednesday, on a leafy cul-de-sac in Arlington, Virginia, students trickle in and out of the home studio of Mohamed Zakariya, who teaches Islamic calligraphy. Reporter Bruce Wallace went to a recent lesson at Zakariya’s home to see and hear the master at work.

In U.S. cities where Muslim populations are growing fast, families are pushing to make their holidays part the calendar in schools. Some cities have adopted the idea – but in the nation’s largest school system – New York City – the debate continues. Lily Jamali reports from New York.

Jessica Stern is perhaps best known for her work interviewing terrorists about their motivations, research that culminated in the acclaimed book Terror in the Name of God: Why Religious Militants Kill.

Green is the color commonly associated with Islam and some scholars say the Qur'an also commands Muslims to be green in the modern environmental sense. In East Africa, a development project using Islamic ethics has taught locals the Qur'anic imperatives of conserving natural resources. Some say eco-Islam has taken root. From Pemba Island in Tanzania, Matthew Brunwasser reports.

The World’s Matthew Bell reports on a unique radio station in Ramallah dedicated to Palestinian women.