A spherical structure is a three-dimensional shape that is perfectly round, like a ball. It has no edges or corners, making it unique among geometric shapes. Spheres are found in nature, such as in the shape of planets or bubbles, and they are often used in design and architecture for their aesthetic appeal and strength. In engineering, spherical structures are important because they can evenly distribute stress and pressure. This makes them ideal for buildings, domes, and even bridges. The geodesic dome, for example, is a popular architectural design that uses a network of triangles to create a strong, lightweight spherical shape.