The shortlist of projects competing for the Aga Khan Award for Architecture and its $1 million-prize has been revealed. The award, given every three years, recognises architecture that addresses the needs and aspirations of Muslim communities. Nominees this year include a low-cost, eco-conscious Indonesian micro-library which aims to help combat the country's low literacy rates, and the Muttrah fish market in Muscat – the design for which was inspired by the flow of Arabic calligraphy and highlights tradition while also catering to Oman's growing tourist industry.