In 1994 the space was doubled to include two additional classrooms, another office and the indoor Madden Gallery. To entertain the park's 30,000 business people and residents of the surrounding community, the Museum has produced festivals on the grounds, that interweave all types of performing arts with the permanent collection. In 1986 when Fiddler's Green, a bermed, grassy-sloped amphitheatre, was contributed to MOA, a performing arts season was begun in earnest. By 1988, Fiddler's Green Amphitheatre was expanded to include a stage house with backstage facilities, full light and sound capacity, and 7,500 permanent seats supplemented with a grassy area to accommodate an additional 10,500 people. Since 1982, The Museum of Outdoor Arts has grown into a full-scale art center that attracts close to 400,000 visitors annually, some whose business brings them into the Museum's environment on a daily basis.
Programs reach every segment of the metropolitan Denver community and beyond.
Several times each year, the Museum commissions artists to design and build site-specific temporary exhibitions for either The Madden Gallery or for an outdoor landscape. Several times yearly, the Museum offers student art education programs that result in either large-scale. Each element of the education program for children is designed to relate to the art collection. Classes, camps and workshops are often interdisciplinary in nature combining the visual, performing and literary aris. Finished class work is often displayed publicly inside surrounding office buildings, throughout the park or in The Madden Gallery.