2 . Here are some properties that the British royal family owns.

Buckingham Palace	The most famous palace for the British monarchy(君主), Buckingham Palace, is easily recognized. It was originally built for the Duke of Buckingham in 1703 and acquired by King George Ⅲ in 1761 and has remained in the royal family ever since. This is where the family tends to greet visitors and crowds, and serves as the administrative offices of the monarch of the United Kingdom. It is valued at $4.9 billion.
The Diamond Diadem(王冠)	This Diamond Diadem was made in 1820 for George Ⅳ, which was regularly worn by Queen Victoria after it was reset with jewels from the royal collection. Queen Elizabeth Ⅱ wore it in 1953. The jewelry experts estimated it to be worth around $ 6.9 million.
Painting by Claude Monet	The royal family is known for its extensive art collection as well. This is “Study of Rocks; Creuse: ‘Le Bloc’” by Claude Monet (1840-1926). In 1949, Queen Elizabeth the Queen Mother purchased it for $2,300, and by the time of her death in 2002, it was worth about $17,000. The Monet painting hung in her main residence at Clarence House for several years, but is now on display at Buckingham Palace.
Tower of London	It’s built in 1066. It’s not a working palace any more, but it used to be. The Tower of London, officially called His Majesty’s Royal Palace and Fortress of the Tower of London, now functions as a museum and is a protected World Heritage Site due to its extensive history. It’s also the single most valuable piece of property in the United Kingdom, estimated to be worth about $81 billion.

3 . Icehouse and ice ticket

As early as Pre-Qin Dynasty, people used natural ice to keep food fresh and make cold drinks. The Zhou royal court had a specialized department called “ice administration”. They collected natural ice blocks each December to store in the icehouse. During the Qing Dynasty, “ice tickets” were used and they were available only to officials and the rich.

Ice container

The most commonly used cooling tool is called “Jian”, which is a big container filled with ice. It was made of clay in early Chinese history, and was later made of copper (铜). The “Jian” can be seen as an ancient refrigerator, which can be used to make cold drinks.

Hiding food in the well

During the Qin and Han dynasties, for common people, the most common way to cool off is by using their wells. Some families put a pot in the well as a cold closet, or put food in a basket and lowered the basket into the well with a rope.

Herbal drinks

During the Qing Dynasty, taking Chinese herbal medicine was popular in Beijing. In hot summer, some people preferred to drink ice water, some boiled perilla leaves, and liquorice as summer soup to keep off the heat. Ancient people also loved to make lotus seed soup in summer for the benefit of strengthening the body.

4 . Once Popular Sports in Ancient Capital Xi'an

The ancient capital Xi'an in Northwest China's Shaanxi province is holding the National Games. As the capital of 13 dynasties throughout Chinese history, the ancient city has never been far from sports. Starting from the Western Zhou Dynasty to the Tang Dynasty, the city has held many sports events.

Cuju: Origin of modern soccer

Cuju was an ancient Chinese competitive game involving kicking a ball through an opening into a net. As the ancestor of soccer, it first appeared in the renowned ancient Chinese historical work Zhan Guo Ce（“Strategies of the Warring States”）, which describedCuju as a form of entertainment among the general public. Later, cuju was commonly played in the army for military training purposes, during the Han Dynasty.

Jiaodi: Chinese-style wrestling

Sumo, known as Japan's “national sport”, actually started in ancient China. Sumo was called jiaodi or jiaoli in ancient times. Ancient jiaodi,a Chinese-style wrestling, was performed by athletes wearing ox horns and wrestling with each other imitating wild oxen. During the Sui and Tang dynasties, jiaodi was highly favored by emperors. In the Tang Dynasty, jiaodi was part of military training and a kind of entrainment and athletic sports.

Jiju: Ancient polo

Jiju is a sport which uses a stick to hit balls while riding on a horse, pretty similar to modern polo. It was popular in the royal court and among common people in the Tang Dynasty. There were many fields for playing polo in the court and it was also a major military training program in the army. In the Tang Dynasty capital, there were formal polo courts, such as the stadium pavilion in Chang' an palace.

Archery

During ancient times, the origin of archery was closely related with hunting and defense. Ancient archery was not only an athletic event,a military training program, and an entertainment activity, but also part of education. As early as in Zhou Dynasty, the archery was listed as one of the six practical disciplines, also called the Six Arts, becoming an important and competitive form.