For 40 years, from 1853 until 1893, the Mormon settlers in Utah labored and sacrificed to construct the Salt Lake Temple. The process of moving and chiseling granite and placing the stones in exactly the right spot was no small feat, especially without the use of modern technology.
Hunter Calton, a 9-year-old boy living in Shanghai, built the Salt Lake Temple by himself in one month. Sharly, Hunter's 4-year-old sister, put the temple together with her dad. Other children have constructed the temple in as little as 4½ hours.