The dignity and attractiveness of a community and the convenience of its citizens may be served by thoughtful location of public and semipublic buildings. These will ordinarily include the city hall, courthouse, public library, art museum, churches, high schools, and, perhaps, university buildings. Each building of this type becomes more impressive when part of a well-arranged group, especially when it can be seen from long street approaches. But in such an arrangement special care should be taken to preserve a practicable street plan. In smaller communities the principal public buildings may form a single group, while in larger cities there may be a principal civic center, a principal educational and art center, and a number of outlying community centers.