Three laws of architectural order are obtained by analogy from basic physical principles. They apply to both natural and man-made structures. These laws may be used to create buildings that match the emotional comfort and beauty of the world's great historical buildings. The laws are consistent with Classical, Byzantine, Gothic, Islamic, Eastern, and Art Nouveau architectures; but not with the modernist architectural forms of the past 70 years. It seems that modernist 20th century architecture intentionally contradicts all other architectures in actually preventing structural order.