Why Do Mormons Build Temples?

Take a look at this video titled Mormon Messages: Why Mormons Build Temples. The video was produced by The Church of Jesus Christ of Latter-day Saints and is posted on the home page of lds.org.

The question I have is: why don't other Christian churches build temples? I think the simple answer is because most other Christian churches don't really know why a temple would be any different than a regular church building. This video answers that question.