Islamabad , city (1998 pop. 524,500), capital of Pakistan, NE Pakistan, just NE of Rawalpindi , the former interim capital. Construction of Islamabad [city of Islam] as the capital, replacing Karachi, began in 1960. There are light manufacturing industries. Points of interest include Pakistan House, the home of the president; the national assembly building; the National Univ.; the Grand National Mosque; and the botanical gardens. The nearby Murree Hills serve as a summer resort as well as summer headquarters for many diplomatic missions. Also near the city are the historical ruins of Taxila.