Baghdad's traffic, choked by hundreds of checkpoints, slows to a crawl while security forces inspect vehicles for weapons and explosives. Lynsey Addario/National Geographic hide caption

itoggle caption Lynsey Addario/National Geographic

On Saturday morning, March 5, National Geographic Channel and a team of scientists, engineers & two world-class balloon pilots successfully launched a 16' X 16' house 18' tall with 300 8' colored weather balloons, and set a new world record for the largest balloon cluster flight ever attempted. Stewart Volland /PRNewsFoto/National Geographic Channel hide caption

itoggle caption Stewart Volland /PRNewsFoto/National Geographic Channel