This document provides an overview of the city of Peshawar, Pakistan. It discusses that Peshawar was once known as the "City of Flowers" but is now one of the most polluted cities in the world. It outlines key facts about Peshawar such as its population, climate, and proximity to the Afghan border. The document then examines some of Peshawar's urban development challenges including rapid population growth, improper land use, and loss of agricultural land. It also describes some sustainable development initiatives in Peshawar such as the BRT bus system, tree planting projects, planned housing schemes, and model environmental villages.