The Copenhagen Opera House is one of the most advanced opera houses in the world and one of the most expensive opera houses. It cost $500 million and was built for four years and was completed in January 2005. Located in the heart of Copenhagen, Denmark on the Island of Holmen.

The Copenhagen Opera House has 14 floors, 9 floors above ground and 5 floors underground. The building area is 41,000 square meters, of which 12,000 square meters are underground buildings. Stence provided the project with a perfect insulation solution for 1/4 and 2-3/8 sizes of Class 0, δ1-3/8〃 and δ1-1/4〃 plates.

The roof of the main hall of the Grand Theatre is even decorated with 105,000 24-carat gold leaves, making it a magnificent music hall.