With its short-lived jubilation, the Iglesia ni Cristo's "Philippine Arena" is NOT anymore the biggest dome in the world.
Singapore's National sports stadium ("Singapore Sports Hub") is now officially the biggest dome in the world when completed in 2014 which coincides with the completion date of the Iglesia's Philippine Arena.
While Singapore's National Stadium will be used for national and international sports events and other international world cups, the INC's Philippine Arena will be used for its Centennial Founding Anniversary. The Iglesia ni Cristo church was founded by Felix Manalo in July 27, 1914.
Photo Source: Singapore Yahoo! News