The city is the largest town and the capital of Bihar state. Patna is one of the fast growing cities in India. It is located at the banks of the Ganges river. Patna is one of the oldest cities in the world with a remarkable heritage. Although developed into a modern city, Patna retaining their cultural and historical heritage which can be seen through the architecture of the buildings.
Until the 16th century, Riyadh (or Ar-Riyadh) formerly known as Hajr. Riyadh is a city with hot desert climate. Being a desert city, Riyadh today is one of the fastest growing cities in the world. Riyadh has developed into a global city and become a focal point for both travel and trade. It is now one of the richest cities in the Middle East and the 80th richest city in the world.