Family members of Ziona pose for a group photograph in Baktawng village in the northeastern Indian state of Mizoram, on October 7, 2011. Ziona is the head of a religious sect called "Chana," which allows polygamy and was founded by his father Chana in 1942. Ziona has 39 wives, 94 children and 33 grandchildren. He lives in his 4 story 100-room house with 181 members of his family.
Public residential buildings are seen in Po Lam, one of the "satellite towns" in Hong Kong, on September 14, 2011. This southern Chinese city is described as a concrete forest, famous for the number of high-rise commercial and residential towers. About 25 percent of the world's tallest 100 residential buildings stand in the territory. (Reuters/Bobby Yip
Motorists crowd at a junction during rush hour in Taipei, on October 29, 2009. There are more than 8.8 million motorcycles and 4.8 million cars on Taiwan's roads and nearly all motor vehicles and inhabitants are squeezed into a third of the island's area.
The crowded maternity ward of the government-run Dr. Jose Fabella Memorial Hospital in Manila, Philippines, on June 1, 2011. The ward, the busiest in the country, sees an average of 60 births every day. The Philippines' population growth rate of around 2.0 percent is above Southeast Asia's average of around 1.7 percent, with an estimated 200 babies born every hour. Lack of a national policy on birth control and access to modern family planning methods - frowned upon by the powerful Catholic church - are some of the factors that have led to the country's population ballooning to nearly 100 million, according to various government and private sector estimates, with the Philippines the second most populous nation in the region after Indonesia. (Reuters/Cheryl Ravelo)
A view of a residential building in Shanghai, China, on March 18, 2009. Shanghai is currently the most populous city in the most populous nation in the world, home to more than 23 million residents. (Reuters/Stringer)
Residents crowd in a swimming pool to escape the summer heat during a hot weather spell in Daying county of Suining, China, on July 4, 2010.
(Reuters/Stringer
Thousands of Bangladeshi Muslims board overcrowded trains as they try to return home after attending a three-day Islamic Congregation on the banks of the river Turag in Tongi, outskirts of Dhaka, Bangladesh, on January 23, 2011. The congregation held each year since 1966, is among the world's largest religious gatherings. (AP Photo/Pavel Rahman)