The Royal Opera House is a triumph of neoclassical architecture, built from cream-colored Calant marble and capped with a massive, verdigris-copper dome that has turned a regal sea-foam green over the decades. Its facade is a forest of Corinthian columns, and the grand staircase is flanked by two enormous bronze hippogriffs, the heraldic guardians of the arts in the Free City. The Royal Opera House is the dedicated cathedral of the High Voice. It hosts the most prestigious operatic cycles in the Flanaess. The acoustics are legendary, whispered to be enhanced by resonance-crystals embedded deep within the plaster of the auditorium walls.