Gr 3-5-Clear, factual descriptions of the historical and cultural relevance of these icons. Details about early planning, reasons for building, and important figures are included. Empire State and Golden Gate focus on the physical aspects of the structures, introducing architects, engineers, building materials, etc. NASA is more about the U.S. space program, offering particulars on each of the major rocket programs as well as some background on the space race. Black-and-white and color photographs, time lines, and sidebars appear throughout these titles. With several books available about the Empire State Building and the Golden Gate Bridge for this age group, these titles are additional purchases. However, there aren't many that center on NASA as an entity, and thus it could be useful in general space-exploration collections.-Jody Kopple, Shady Hill School, Cambridge, MA Copyright 2005 Reed Business Information.