I'll never forget the first time I listened to a concert in Chicago's Orchestra Hall. It was Andre Segovia, the incomparable Spanish guitarist, and the hall lived up to its billing as an acoustical marvel, the finest complex of its kind this side of Salt Lake City's Mormon Tabernacle. Located at 220 South Michigan Avenue, Orchestra Hall was built in 1904. Designed by renowned Chicago architect Daniel Burnham, the elegant 2,522-seat venue was earmarked as a home for the Chicago Symphony Orchestra, which had previously performed in the larger Auditorium Theater. Today, the Chicago Symphony Orchestra is universally regarded as one of the premier symphony orchestras in the world and Orchestra Hall is part of a music complex that also includes Buntrock Hall, a rehearsal and performance space, Grainger Ballroom and Opus restaurant and cafe. From 1907 to 1996, the ninth-floor penthouse served as the home of the Cliff Dwellers Club. Aside from musical concerts and piano recitals, the hall also has hosted lectures by such notables as Harry Houdini, Amelia Earhart, Bertrand Russell and Orson Welles. Season tickets are as cherished as as hard to obtain as the Cubs, Bulls, Bears and Blackhawks. Orchestra Hall was added to the National Register of Historic Places in 1978 and designated a National Historic Landmark in 1994.