The Palace Museum in Beijing, also known as the Forbidden City and one of the country's most prominent landmarks, will limit visitors to 80,000 a day from June 13.
Located in the heart of Beijing, the Forbidden City was home to China's emperors and was the highest center of power from 1420 to 1911. It attracts more than 15 million visitors annually.
According to a statement from the museum, the huge number of visitors makes conservation efforts difficult and the ancient architecture and relics suffer from such large crowds.
The new limit will require visitors to purchase tickets using ID, such as passports or other valid identification documents, with advance booking online strongly encouraged, it said.
Tourists traveling in groups will be advised to visit the museum in the afternoon.
Find more info at the museum's website www.dpm.org.cn.