The problem may be due to a break in the network connection or other network faults. You can try to solve the problem by the following methods:
1) Press the pause button and wait for some time in order to ensure the download is complete. Then click the 'Play' button to try again.
2) Refesh the current web page after the clearing cathe by clicking the Toolkit on the top of Internet Browser -> Internet Option -> Delete File -> Delete All Off-line Contents -> OK.
Tiananmen Square in the center of Beijing is a must for tourists. Tiananmen Tower, Monument to the People's Heroes, Great Hall of the People, and Mao Zedong Memorial Hall can be seen from the square. Also, the national flag raising ceremony there shouldn't be missed.