Asia is considered one of the seven continents. Asia is measured by landmass and human population and regarded as the largest continent. With so many countries, one to his surprises can find a wide variety of religious practices in Asia. There are a wide variety of rituals; customs, traditions, culture, religions but Hinduism, Buddhism, Islam, Christianity, Sikhism have the largest number of adherents to it. Among many supposed Asia facts, the undisputable one is it is the home to the largest percentage of humans on the planet and has unity in diversity. Asia has splendid and exotic places to be visited. Much of the southwest Asia and central Asia is covered with barren deserts. Siberia, the northern region of Asia has the oldest, deepest and eighth largest lake in the world. Lake Baikal consists more than 20 percent of the world's unfrozen fresh water. Asia has many great rivers that include the Huang He, Mekong, and the Indus.