Very large floating structure

A very large floating structure is a man-made structure that floats on the surface of the water. It is usually built to serve a specific purpose like a house, platform, ship, or an entire city. They are very strong and are often made to withstand storms and rough waves, so they will stay afloat even in bad weather. The structure is built by attaching specially-made large hollow blocks (called pontoons) to each other until the desired shape is created. Then, the whole structure is filled with air or water so it can float on the surface.