The Landmark Convention Center in Tacoma, Washington, United States is located at 47 St. Helens Avenue. It was added to the National Register of Historic Places in 1993. Ambrose J. Russell is credited as the architect of the meeting hall and theater. It is said to be in a Renaissance style and Late 19th and 20th Century Revival style, and said to have had its "p…The Landmark Convention Center in Tacoma, Washington, United States is located at 47 St. Helens Avenue. It was added to the National Register of Historic Places in 1993. Ambrose J. Russell is credited as the architect of the meeting hall and theater. It is said to be in a Renaissance style and Late 19th and 20th Century Revival style, and said to have had its "period of significance" between 1925 and 1949.