New Delhi is situated within one of the world's most populous regions, the metropolis of Delhi. This frenzied conurbation is a fascinating blend of old and new where Mughal shrines, medieval forts, colonial architecture and bazaars contrast with skyscrapers, shopping malls and first-world infrastructure. Officially titled the National Capital Territory of Delhi and home to over 25 million people, Delhi is the second wealthiest city in India and has the second highest GDP in South, Central and West Asia.