The 28 Story LDS Church Office Building was designed in 1962 by George Cannon Young (a grand son of Brigham Young). Similar to many buildings of it's day, (including the World Trade Center) it looks rather dated now. The building, located in Temple Square, is NOT the tallest building in the city but it appears to be because it sits on the highest ground in downtown SLC. It is the headquarters of the Mormon church and also houses the worlds most extensive genealogical library.