A short video produced by the LDS Church explains the difference between a temple and a meetinghouse and how each is used by the members of the Church.
Here is another short video of the inside of LDS (Mormon) temples. This video was found shared by Mike Batie, and was compiled from official published photographs by the LDS Church of the inside of temples. Usually these photos are taken by the Church during its public open house, and before the dedication, after which the temple is closed to the public and set apart for performing sacred saving ordinances of the gospel of Jesus Christ.
The excellent music is entitled “The Power of Heaven,” with words and music by Steven Kapp Perry, arranged by Greg Hansen, and from the 1999 album “As Temples Fill the Earth.” The vocalist is Tammy Simister Robinson. You can buy the album at the BYU Bookstore or at Deseret Book.