Vincent Callebaut visionary behind the Lilypad has created a whale-shaped floating garden designed to drift through the world’s rivers while purifying their waters. The Physalia is a self-sufficient ecosystem that generates all the power it needs from the sun and works to reduce water pollution. Physalia was inspired by the Physalia Physalis jellyfish, whose name translates roughly to “Water Bubble”. This water bubble is meant to navigate the major rivers of Europe, Northern Africa and the Middle East, traveling along the Danube and Volga, between the Rhine and Guadalquivir, and through the Euphrate and the Tiger. Completely self sufficient and incredible looking, the Physalias would turn heads wherever it floated.