“热门(rèmén)” vs. “冷门(lěngmén)”-Who is More Popular?

In the Chinese language, the basic meaning of “门(mén)” is “door.”

Example

Qǐng guānmén! 请     关门!

Close the door, please!

But in some words although they contain the character “门(mén),” the meaning of the word has nothing to do with “door,” such as “热门(rèmén)” and …