Abstract: A magnetic building block includes a base with a bottom wall and multiple outer walls extending perpendicularly from the bottom wall. The base has multiple receivers connected to the outer wall, where each receiver comprises a cavity. Some receivers contain rectangular magnetic elements, while others contain rotatable cylindrical magnetic elements. The cylindrical magnetic elements can rotate within their cavities to align polarity for connection with adjacent blocks. The rectangular magnetic elements are fixed in position. A lid covers the cavities and secures the magnetic elements within the receivers. This arrangement of different magnetic element types and orientations allows for versatile connections between blocks while maintaining consistent magnetic attraction strength for construction of various structures.