in the German-speaking lands, Federal style in the United States, the Regency style in Britain, and the Napoleonstil in Sweden. According to the art historian Hugh Honour "so far from being, as is sometimes supposed, the culmination of the Neo-classical movement, the Empire marks its rapid decline and transformation back once more into a mere antique revival, drained of all the high-minded ideas and force of conviction that had inspired its masterpieces". Characteristics High neoclassicism was an international movement. Architects reacted against the excesses and profuse ornament used in Late Baroque architecture. The new "classical" architecture emphasized planar qualities, rather than elaborate sculptural ornament in both the interior and the exterior. Projections and recessions and their effects of light and shade were more flat; sculptural bas-reliefs were flat and tended to be framed by friezes, tablets or panels. This was the first "stripped down" classical architecture, and appeared to be modern in the context of the Revolutionary period in Europe. At its most elemental, as in the work of Etienne-Louis Boullée, it was highly abstract and geometrically pure. Neoclassicism also influenced city planning. The ancient Romans had used a consolidated scheme for city planning for both defence and civil convenience; however, the roots of this scheme go back to even older civilizations. At its most basic, the grid system of streets, a central forum with city services, two main slightly wider boulevards, and the occasional diagonal street were characteristic of the very logical and orderly Roman design. Ancient façades and building layouts were oriented to these city design patterns and they tended to work in proportion with the importance of public buildings. Many of these urban planning patterns found their way into the first modern planned cities of the 18th century. Exceptional examples include Karlsruhe, Washington, D.C., Saint Petersburg, Buenos Aires, Havana, and Barcelona. Contrasting models may be found in Modernist designs exemplified by Brasília, the Garden city movement, and levittowns. Regional trends Great Britain and Ireland From the middle of the 18th century, exploration and publication changed the course of British architecture towards a purer vision of the Ancient Greco-Roman ideal. James 'Athenian' Stuart's work The Antiquities of Athens and Other Monuments of Greece was very influential in this regard, as were Robert Wood's Palmyra and Baalbec. A combination of simple forms and high levels of enrichment was adopted by the majority of contemporary British architects and designers. The