Asia is the largest continent of the world. It covers about 30 percent of the world's total landmass. There are a total of 44 countries in the continent of Asia. Some of the top countries in Asia are Japan, Thailand, China, Korea, and India. In this section of the site, a directory of the top cities of Asia is given. Some of the top cities of Asia are Tokyo, Bangkok, Hong Kong, Singapore, Mumbai, New Delhi, Seoul, and Beijing.