Monuments are frequently used to improve the appearance of a city or location. Planned cities such as Washington D.C., New Delhi and Brasília are often built around monuments. For example, the Washington Monument's location was conceived by L'Enfant to help organize public space in the city, before it was designed or constructed. Older cities have monuments placed at locations that are already important or are sometimes redesigned to focus on one. As Shelley suggested in his famous poem "Ozymandias" (""Look on my works, ye Mighty, and despair!""), the purpose of monuments is very often to impress or awe.