The Maya civilization is one of the most famous and brilliant ancient civilizations in the world. It developed in Central America, covering parts of modern-day Mexico, Guatemala and Belize. This ancient civilization flourished for thousands of years and left countless amazing treasures for human history.The Maya people were extremely smart and creative. They made great achievements in many fields. In astronomy, they carefully observed the stars and planets. They created accurate calendars to record time and guide farming. Their calendar system was even more precise than the European calendar at that time.In mathematics, the Maya invented a unique counting system. They were one of the earliest groups of people in the world to use the concept of zero, which greatly promoted the development of calculation and science.Besides science, the Maya also built magnificent cities and buildings. They constructed tall pyramids, grand temples and stone palaces without modern tools or machines. These stone buildings have stood for centuries and still surprise people today.However, the glorious Maya civilization suddenly declined after the 9th century. Most Maya cities were gradually abandoned, and the reason for the decline is still a mystery.Today, the mysterious Maya civilization still attracts millions of visitors and researchers. Its wisdom in science, culture and architecture shows the great creativity of ancient humans.