New York City Ballet

Edward Villella of the New York City Ballet performs with an unidentified partner in George Balanchine's ''Nutcracker.''

Diana Adams and Nicholas Magallanes perform with the New York City Ballet ensemble in George Balanchine's ''Orpheus.''

The New York City Ballet ensemble performs in George Balanchine's ''Orpheus.''

Isamu Noguchi's costume and set design for choreographer George Balanchine's dance ''Orpheus.''

Portrait of Adam Luders, principle dancer in the New York City Ballet.

Portrait of Allegra Kent, prima ballerina for the New York City Ballet.

Portrait of ballerina Patricia McBride, principal dancer with the New York City Ballet.

The New York City Ballet ensemble performs in George Balanchine's ''Prodigal Son.''

Helgi Tomasson of the New York City Ballet performs in George Balanchine's ballet ''Prodigal Son.''

Peter Martins of the New York City Ballet performs with Kay Mazzo in Balanchine's ''Serenade,'' which aired on public broadcasting stations on television as part of the Great Performances series.