Introduction to the Royal Opera House: The Royal Opera House of Madrid (Teatro Real) is located directly opposite the Royal Palace of Madrid and was built on the order of Queen Isabella II. The design and construction of the theater went through a long construction period of 32 years. The royal family, who couldn't bear it, finally ordered that it must be completed immediately. As a result, the theater was completed within 5 months. There is only one floor in the theater - the rotunda, which can completely go around the theater. There are four halls on the rotunda, each decorated in different colors, displaying some collections from the National and Prado Museums.