Milan were built in the city during this period by the architects, Pellegrino Tibaldi, Galeazzo Alessi and Ricchino himself. Empress Maria Theresa of Austria was responsible for the significant renovations carried out in Milan during the 18th century. This profound urban and artistic renewal included the establishment of Teatro alla Scala, inaugurated in 1778 and today one of the world's most famous opera houses, and the renovation of the Royal Palace. The late 1700s Palazzo Belgioioso by Giuseppe Piermarini and Royal Villa of Milan by Leopoldo Pollack, later the official residence of Austrian viceroys, are often regarded among the best examples
War Memorial Opera House Opera House, was opened as part of the complex which included the Louise M. Davies Symphony Hall. In 1989, the powerful Loma Prieta earthquake that shook the Bay Area caused major damage to the Opera House. The architectural firm of Skidmore, Owings & Merrill and the theatrical consulting firm of Auerbach and Associates were retained in 1992 to oversee the building's technical renovation and a seismic retrofit. At this time additional private donations were raised for extensive technical improvements. These include: War Memorial Opera House The War Memorial Opera House in San Francisco, California, United States of America is located