The coastal city of Lagos, Nigeria has a flooding problem. Construction projects try to anticipate rising waters by using massive stilts to raise buildings above the highest water levels, but it's impossible to estimate exactly how high the water will rise, and buildings often suffer from water damage. Earlier this month, architecture firm NLÉ completed Makoko Floating School, a project that addresses the rising sea levels on the Nigerian coast. The school's A-frame structures float on beds of large plastic drums, have up to three levels, and feature solar panels and locally-sourced materials. [via The Design Ark]