For the Ancient Greek, symmetry was perfection, and ever since, it has become the marking feature of classic architecture. It is, also, considered by some designers as one of the aesthetic principles of design. Lately, there has been a wave of rebellion against symmetry and everything old. Symmetry, as a feature, has become associated with static and boring designs. It seems now that you have to break the symmetry and achieve balance the harder way in order to achieve a creative and dynamic design.
Architects and designers can revolt as much as they like, but at the end of the day human nature is unchangeable, and human nature regards symmetry as the ‘default’. The professor in the Psychology Department at Rutgers University Michael Leyton says in his book “A Generative Theory of Shape”:
“An asymmetry in the present is assumed to have been a symmetry in the past,” and “A symmetry in the present is assumed to have always existed.” Well, now satisfy your sense of perfection and check out these symmetric photographs of architecture and urban geometries.