Although the Royal Ballet's programme has been fluffed up by modern influences, classical ballet is still its bread and butter. This is where to head if you want to see traditional performances such as Giselle or Romeo & Juliet, performed by stars such as Sylvie Guillem, Irek Mukhamedov and Tamara Rojo. There are same-day tickets, one per customer, and half-price stand-by tickets.