El Salvador officially became the first country in the world to list Bitcoin as legal tender since September this year. The President of El Salvador announced recently that he plans to build the world’s first “Bitcoin City” in the country, with an estimated cost of about 138 billion Hong Kong dollars. After El Salvador in Central America listed Bitcoin as legal tender earlier, President Nayib Bukele announced last week that the world’s first “Bitcoin City” will be built in the province of La Union, with the appearance of a coin. The design of “Bitcoin City” includes various infrastructure such as…