from Wikipedia Rangoon:
Yangon (also known as Rangoon) is the largest city and former capital of Burma. Although the military government has officially relocated the capital to Naypyidaw since March 2006, Yangon, with a population of 6 million, continues to be the country's largest city and the most important commercial center.
Yangon's infrastructure is relatively undeveloped compared to those of other major cities in Southeast Asia, but it is one of the greenest and most unpolluted major cities in the region. Yangon has the largest number of colonial buildings in Southeast Asia today. While many high-rise residential and commercial buildings have been constructed or renovated throughout downtown and Greater Yangon in the past two decades, most satellite towns that ring the city continue to be deeply impoverished.
Yangon is a member of Asian Network of Major Cities 21.