Why do hotels or railway stations all stand on three poles? What flags are hung separately? All I know is that there is a national flag in the middle.

How many flagpoles there are in front of the hotel or railway station is uncertain. For example, there is only one flagpole in Beijing Railway Station, and the national flag is raised on holidays.

At present, the number of flagpoles in many units is above 1, usually one is the national flag, the other is the flag of the enterprise itself, and it may also be the flag of the joint venture country.

In short, there are no certain rules, which are decided by the enterprises themselves.