52 years ago today, on October 20, 1973 (September 25, 1973 in the lunar calendar), the Sydney Opera House in Australia was completed. In the harbor of Australia, there is a building with unique conception and superior design. When viewed from a distance, it looks like a cluster of white sails slowly floating from the blue sea; when viewed up close, it looks like shells washed ashore by the waves. They stand obliquely on the sea. The white sail-like roof consists of 10 large "seashells", the tallest one being 67 meters high. It is the world-famous Sydney Opera House. The Sydney Opera House is recognized by the world as one of the most beautiful buildings of this century and a "rare work" in the history of contemporary architecture. It attracts 2 million tourists from all over the world every year. Very few people who go to Australia for sightseeing do not go to Sydney, and all tourists who come to Sydney do not go to the Sydney Opera House. As a result, Sydney has become a city with a very prosperous tourism industry. The Sydney Opera House was completed on October 20, 1973 and was inaugurated by Queen Elizabeth II of England. Although it is only more than 20 years old, its popularity is far higher than many famous European opera houses. Together with the Harbour Bridge, it has become a symbol of the earliest and largest city in Australia. However, few people know that the construction process of the Sydney Opera House was full of twists and turns. The design blueprint for this dreamy building was almost buried in the wastebasket. In 1957, a four-member jury discussed and reviewed various design plans for the opera house. One of the judges, Ilro Sarinan, noticed the design that had been thrown into the wastebasket. The veteran Finnish-American architect has unique insight and found the Danish designer Jørn Utsson's ideas unique, poetic and attractive. Sarinan fought hard and finally persuaded the other three judges to change their minds. In the end, the pattern designed by Utsson defeated 231 other competitors and was selected, and won a prize of 5000 pounds. The unique design of the Opera House expresses great anti-traditional courage and naturally challenges traditional architectural construction. The budget of the project is staggering. As construction costs continue to increase, Sydney citizens doubt whether the palace for artistic performances can be finally completed. A total investment of US$102 million was invested when the opera house was completed. It took engineers and technicians a full five years to calculate how to build 10 large "sea shells" to ensure that they would not collapse. Delays in construction and high costs led to the downfall of a new south wales government. The opposition Liberal Party attacked the ruling Labor Party for spending a considerable portion of its financial resources on the construction of the Sydney Opera House while ignoring investment in hospitals and other welfare services, leaving people's lives and deaths at risk. After the new government took over, its attitude towards building an opera house was not as firm as its predecessor. A fierce debate broke out between the builders and the government, which finally forced Utsson to bid farewell to Sydney in tears. At that time, even a quarter of the opera house project had not been completed. Since then, Utzon, the designer of the Sydney Opera House, never came back, even when the "masterpiece" of his design was transformed from a blueprint into a real object, and even during the grand celebrations of the 5th, 10th and 20th anniversary, he never came back to take a look. The opera house was officially completed in 1973 and was rated as a World Cultural Heritage Site by UNESCO on June 28, 2007.