Islands of the Ganges Delta, in Bangladesh, change shape over the years as the Meghna River drains into the Bay of Bengal. Hatiya, the largest island seen at top, is frequently subject to cyclones, monsoons, floods and destructive ocean waves. Despite these risks, islands like these are densely populated; in fact, more than 125 million people live on the Ganges Delta. 22.326515°, 90.993407° Source imagery: Google Timelapse | Daily Overview