The Auditorium Ennio Morricone, formerly known as Auditorium Parco della Musica, is a multifunctional complex designed by Renzo Piano. The main buildings are its three concert halls, of different sizes, designed in a shape that is reminiscent of a beetle. The three halls are arranged in a halo pattern around a semicircular open-air theatre (Càvea) with tiered amphitheatre seating. For this project Piano used traditional Roman building materials: travertine in the foyers, entrances and for the Càvea’s steps; Roman brick to cover all the vertical surfaces; lead for the frames of the three halls. The halls have been conceived as if they were real musical instruments, using only cherry wood for the interiors so as to ensure optimum reverberation. While the Auditorium was being built, the remains of a Roman villa were unearthed and cleverly integrated into the original project.