Theaters Teatro Gioachino Rossini The Teatro Gioacchino Rossini is the most important theater in Pesaro. It was built in 1637 as the Teatro del Sole. The structure took its current name in honor of the composer. It has an auditorium designed with the classic horseshoe shape with four stages orders plus the loggia. During the year the theater hosts: opera productions and concerts by Rossini, Opera Festival, the Theatre Season, the Concert Season and the National Festival of Dramatic Art.