Normally I don't use Wikipedia as a primary source. However, someone has done an excellent job here listing the scores of sectarian groups that are offshoots of Joseph Smith's teachings. The chart is particularly helpful.

Of course the LDS church looks to the denominations of Christianity as proof that our Bible is unreliable and incomplete and thus causes the divisions among us. But the reality is that the LDS church is rife with division and sects.

In fact, the number of sects that have arisen since Smith's day show that LDS “continuing revelation” led to “continuing division.”

Of particular interest on this page is the group that built a pyramid-shaped temple (The Righteous Branch of the Church of Jesus Christ of Latter-day Saints.)

In fact, SEVEN of the offshoot groups have their own temples!

For more information, see The Mormon Mirage.