This is a difficult question because there could always be debates about it. However, the Greco-Roman style, known as Classical architecture, influenced practically everything after it. It influenced Baroque, Renaissance, Neoclassical, and Modern forms of architecture. It has been around for thousands of years, and it can still be seen today. For instance, the White House uses a Neoclassical style and that is a building that will likely remain one of the most famous in the world for years to come.