birds. Gardens at the PNE grounds includes an Italian garden and Momiji Commemorative Garden; the latter serving as a memorial for the internment of Japanese Canadians during World War II. Another memorial located on the park grounds is dedicated to the 29th Battalion, (Vancouver), CEF, an infantry battalion whose lineage is perpetuated by the British Columbia Regiment (Duke of Connaught's Own). Approximately of Hastings Park is not managed by the Pacific National Exhibition. This includes Hastings Racecourse, a facility operated by Great Canadian Gaming; and several facilities maintained by the municipal government, including Empire Field, an emergency dispatch centre, and local community centre. Structures The PNE grounds contains several buildings and exhibition halls. The PNE Forum is a exhibition facility that is used for large displays and trade shows. Rollerland is a exhibition, banquet hall and venue for the Terminal City Roller Derby. Two buildings on the PNE grounds are indoor arenas. The Pacific Coliseum is multi-purpose arena that holds 15,713 permanent seats, with provisions for 2,000 temporary seats for concerts and certain sports. The PNE Agrodome is a smaller indoor arena with 3,000 permanent seats, with provisions to expand up to 5,000 seats. Entertainment facilities includes the Garden Auditorium, a building that features a built-in stage and dance hall. The PNE grounds also feature amphitheatre with bench-style seating for 4,500 visitors. Other buildings on the PNE grounds includes the Livestock Barns, a large multi-use facility, and the organization's administrative offices. Demolished buildings Armed Services Display Building (1950s) Aquarium Athletic Field (1910) Baby Dipper Band Stand 1950s BC Pavilion; later BC Sports Hall of Fame Dining Hall Dip the Dips (1915) Directors' Dining Room Display Barn District Display Exhibit Empire Stadium (1954); later Empire lot and now Empire Field (and maintained by the Vancouver Parks Board) Feed Store Ferryboat Wharf (1910) Food Building (a.k.a. Pure Foods Building, 1931); now part of the Sanctuary parkland Forestry Hall (1913) Fountain Giant Dipper Grandstand (1910) Green House Happyland Carousel Building Horticultural Building Industrial Building (1910); later as the Women's Building Livestock Judging Pavilion Manufacturers' Building; also Machinery Hall and later Transportation Building (1910) Mineral Exhibit Miniature Railway Post Office Poultry & Pigeon building (1950s) Press Bureau Pure Foods Building (1931) now the Italian Gardens Race Track and Stables (around 1905) Racing Paddock Refreshment Stands Sheep Stables Shoot the Chutes Showmart (1931); now part of the Italian Gardens Skid Road (Midway) (1910) Stable Restaurant