 The Detroit Opera House, then located on the north side of the Campus across Monroe Avenue from the buildings in this district, anchored the area, and, in 1901, the Wonderland vaudeville theatre moved next door.The early 20th century was the dawn of the movie age, and in Detroit it began on Monroe Avenue.The first movie theater in Detroit, the Casino, was opened on Monroe Avenue in 1906 by John H. Kunsky.