This view shows Canal Park in the right foreground and downtown Duluth behind. The railroad tracks are parallel to Superior Street and will be displaced by the I35 freeway. The flat, undeveloped areas west or to the left of the Arena-Auditorium will later become the site for Playfront Park, Bayfront Festival Park, and the Great Lakes Aquarium. In this photo, Canal Park's recent addition is the 1973 Marine Museum adjacent to the 1906 U.S. Army Corps of Engineers Building. Both are near the base of the North tower of the aerial lift bridge. In the middle of this view is the Arena Auditorium (opened in 1966) that will later to added to and renamed the DECC in 1987. To its right is the rectangular Pioneer Hall. Ground was broken on April 7, 1975, for the Pioneer Hall and Duluth Curling Club. It is a world-class curling facility. The Silver Broom World Curling Tournament in March 1976, drew 41,000 fans from ten countries to the new ice sheets. Grand opening celebrations were held August 30 to September 12, 1976. The Northwest Passage, a skywalk from downtown to the Arena-Auditorium through the Pioneer Hall, will be completed in 1976.