memorial is maintained by the U.S. National Park Service , and receives around 3 million visitors each year. The Memorial Wall was designed by U.S. landscape architect Maya Lin . Maya Lin Beyond Vietnam - Martin Luther King Jr. http://174.132.193.190/~eiden/mp3clips/politicalspeeches/mlkagainstvietnam11223.mp3 Howard Zinn - A People's History of the United States:  Zinn.pdf (This