What city did Jesus say he'd give to the Mormons?
It is expedient that you should form acquaintance with men in this city, as you shall be led, and as it shall be given you. And it shall come to pass in due time that I will give this city [Salem, Massachusetts] into your hands, that you shall have power over it, insomuch that they shall not discover your secret parts; and its wealth pertaining to gold and silver shall be yours.
(This revelation was given to Joseph Smith in Salem, Massachusetts on August 6, 1836. Doctrine & Covenants 111:3