With over 600 years of history, Beijing’s Forbidden City was the royal palace during the Ming and Qing dynasties. This is the largest royal palace in the world preserved almost intact to this day. Architecture of the Forbidden City is divided into two main areas: pre-tide and harem. Stretching over an area of ​​720,000 m2, this work includes 9,999 rooms. Interestingly, many visitors find that the roof in the Forbidden City is always clean, even though it is not cleaned regularly. This makes many people curious why it is so. According to experts, due to the large number of internal architectures inside the Forbidden City, cleaning and cleaning the roof is not easy. In addition, the Forbidden City is an ancient architectural work of hundreds of years old, so people cannot clean and clean by themselves like other works. The roof of the Forbidden City is not covered with dirt or contaminated with bird droppings. This stems from the architecture of the buildings. Specifically, the entire roof in the Forbidden City is painted with gold. This color not only represents luxury and splendor of the royal family, but also represents the destiny of Tho. The Chinese in feudalism thought that land was the source of all things. Therefore, yellow is used as the main color in the Forbidden City. In addition, the yellow color of the roof will contrast with the blue of the sky. When birds fly over the roof area, they will be blurred, limiting their ability to observe. Therefore, very few birds move or land on the roof of the Forbidden City. As a result, there is not much bird droppings on the roof. In addition, the ancients used glazed tiles to make dust and bird droppings easy to wash away when it rains. The curved roof design of the buildings in the Forbidden City contributes an important part in keeping this ancient building clean. Invite readers to watch the video: The US and China tense in high-level dialogue. Source: VTV24.

Map of the Forbidden City with more than 9000 rooms. Photo: Ton That Minh Khoi With the huge area of ​​the Forbidden City, many debates broke out to see how many rooms this project has. In 1972, architects conducted comprehensive statistics according to the standard “four pillars and one room” (that is, each anti-stall is equal to 4 columns, counted as one room). The statistical results show that the Forbidden City has a total of 9687 rooms. However, in all these rooms, there is a place where no one has lived for a long time, that is Khôn Ninh Palace. Cung Khôn Ninh The royal family members living in the Forbidden City all have their own residence: His Majesty lives in Can Thanh palace, the queen lives in Khôn Ninh palace, the queen lives in Tu Ninh palace, and the crown prince is Ninh Tho palace. Each place has its own meaning. If the Can Thanh sign represents positive, the Khôn Ninh arc represents the negative. Photo: Sohu The position of the queen is opposed to the emperor, the emperor is heaven, the queen is earth, so the word “Khôn” in “Khôn Ninh” is taken from the hexagram “Khone” in “Chu translated”, which means that the prince uses virtue to support all things. The bow name Khôn Ninh is understood as “Khone Geographic Security”, which means that this is a safe and pure place. Starting in the Ming Dynasty, the Khôn Ninh Palace was used as an impregnation for the queen. Red is the main color of Khôn Ninh to represent love and reproduction. The emperors would stay with their queen in this palace shortly after their wedding, wishing they could soon give birth to a son. After being ordained, queens will live in Khôn Ninh Palace until their death. If the queen moves out of the palace, it is usually for two reasons, one is that the emperor has died, the queen moves to the queen’s palace or, in a worse case, when the queen becomes unseen. A place such a good place to live, why later Khôn Ninh Palace becomes a gloomy place, no people live? “Hell” queen Contrary to the name of peaceful meaning, Khone Ninh Palace is considered to be a place full of waves. During the Ming dynasty, Emperor Chu – the queen of Minh Tu Tong Sung Trinh De hanged himself here. By the Qing dynasty, King Khang Hi had a total of 4 post-creation times, his two queens passed away inside the Khoneing Palace, which made Khang Hi extremely miserable and never married again. After these haunting events, Khôn Ninh Palace was left vacant for more than 30 years because it was considered a curse. The decoration inside the Khone Ninh Palace is only to serve the emperor’s wedding day, the rest of the year is used as a place of worship. Photo: Sohu According to experts’ analysis, the main reason why Khôn Ninh Palace was uninhabited was the policy of building Di Hoa Vien of the Qing royal family. Many concubines were moved to live in Di Hoa Vien, so the existence of the harem was very blurred, and the old Khôn Ninh Palace was also increasingly empty. Although always vacant, according to royal rites, this Khôn Ninh Palace is still the place where the emperor and the queen get married, they will live there for 3 days before moving to another palace. Later, the Khôn Ninh palace was used mainly as a place of worship for the Manchus deities. Although not often frequented by people, this place is still decorated with splendid architecture and interiors in accordance with royal regulations. However, being only used as a place of smoke for a long time without people living has made Khôn Ninh palace become dull and dull. The murky space and many dark legends will make visitors visiting the Forbidden City feel extremely scared when entering this palace.

Niagara Falls (located on the border between the United States and Canada). In the photo is the Niagara Falls in 1859. A wooden bridge near the waterfall was built in 1827 so visitors can stand admiring the beautiful scenery on the water. The bridge immediately attracted tourists from both the Americas and Europe.

The Great Sphinx of Giza (Egypt) 4,500 years old statue located on the Giza Plateau on the west bank of the Nile in Egypt. A mythical figure portrayed as a lion’s head, the Sphinx was buried to the shoulder by sand until the early 1800s, when a group of explorers tried to dig out. A further dig in the 1930s cleared the sand completely. The above photo taken in 1882 shows the body of the statue still partially buried.

Statue of Liberty (New York City, USA) This famous statue was first not placed in New York, in fact it was on display at the Paris World Fair in 1878 (pictured), before France awarded to America in 1886 to commemorate the alliance between the two countries during the American Revolution.

Eiffel Tower (Paris, France) .The Eiffel Tower was built from 1887-1889 to commemorate the 100th anniversary of the French Revolution and welcome the 1889 World Exhibition. The above photo was taken in 1889. Today, the Eiffel Tower attracts about 7 million tourists per year.

Buckingham Palace (London, England). In the photo is Queen Victoria’s Diamond Festival in 1897. Buckingham Palace is one of Britain’s most famous landmarks and has been the official royal residence since 1837.

Forbidden City (Beijing, China). The Forbidden City is a royal palace with a large construction scale of over 720,000 m2. The Forbidden City was built between 1406-1420 and was recognized as a world cultural heritage by UNESCO in 1987. The photo above was taken in 1908, the Forbidden City.

The Angkor Wat complex (Siem Reap, Cambodia) .The temple complex of Angkor Wat is said to be the largest religious architecture in the world, covering an area of ​​162.6 hectares and includes more than one thousand buildings. in 1910 with Apsara dancers in traditional costumes outside the temple.

Hollywood sign (city Los Angeles, California state, USA). The Hollywood sign used to be labeled “Hollywoodland” as seen in the photo taken in 1925. In 1949, the signboard omitted the word “land”.

Times Square (New York City, USA). Times Square of the 1920s (pictured) is a far cry from today, with very few flashing lights and billboards. Originally, this place was called Longacre Square and was renamed Times Square in April 1904.

Golden Gate Bridge (San Francisco, California, USA). The photo above was taken on May 24, 1937, a few days before the official opening and a small number of journalists were allowed to cross the bridge. Today, about 100,000 vehicles cross the bridge every day.

Empire State Building (New York City, USA). The image above is when the building is under construction in 1931. It was the tallest building in the world until the 1970s, when the World Trade Center won this position.

Matterhorn Mountain (in the Swiss Alps) In the photo is a tourist resting on an observation point on the Italian slopes in the 1950s.

Mount Everest (located between the border between Nepal and Tibet on the roof of the world in the Himalayas). In the photo shows a climber looking out over Mount Everest from one of the surrounding streets in 1955.

Taj Mahal Temple (Agra, India) The Taj Mahal was built in 1632 by Mughal emperor Shah Jahan in commemoration of his wife. This is one of India’s most popular attractions, usually welcoming about 3 million tourists a year. Pictured is the peaceful scene of the temple in 1960.

Leaning Tower of Pisa (Florence, Italy). Historically, Italy has experienced many earthquakes, earthquakes with great destructive power. The leaning tower of Pisan is still standing tall over time after four earthquakes from the 13th century. The ground is the reason why the tower is tilted. But it also helps the tower survive major earthquakes. The image above was taken in the 1960s when researchers from the Institute of Topography and Geodesy at the University of Pisa took annual measurements to check the inclination of the tower.