Islamabad is the capital city of Pakistan, and is located in the northwest of the country.
The city was built during the 1960s to replace Karachi as Pakistan's capital. A Greek firm of architects, Doxiadis Associates, drew up a master plan, triangular in shape based on a grid system with its apex towards the Margala Hills. Rawalpindi is considered its sister city due to the proximity between the two cities.
Islamabad is a rather modern and clean city, especially in comparison to other cities in Pakistan. It is well-organized, with the city being divided into different sectors and zones.