故宫:The Forbidden City was the Chinese Imperial palace from the mid-Ming Dynasty to the end of the Qing Dynasty.It is located in the middle of Beijing,China.It now houses the Palace Museum.
The complex consists of 800 buildings with 8,886 rooms.It covers 720,000 square metres.The Forbidden City was declared a World Heritage Site in 1987 as the "Imperial Palace of the Ming and Qing Dynasties",[1] and is listed by UNESCO as the largest collection of preserved ancient wooden structures in the world.
悉尼歌剧院:The Sydney Opera House is one of the most famous buildings in the world.It is considered to be one of the most recognizable images of the modern world although the building has been open for only about 30 years.The Sydney Opera House is as representative of Australia as the pyramids are of Egypt.
6 225 square meters of glass and 645 kilometers of electric cable were used to build the Opera House.It includes 1 000 rooms.It is 185 meters long and 120 meters wide.The building’s roof sections weigh about 15 tons.There are 1 million tiles on the roof.It provides guided tours to 200 000 people each year.