In the fictional writings of J. R. R. Tolkien, the Undying Lands are a realm inhabited by immortal beings. It includes the continent of Aman and the island of Tol Eressëa.
The treacherous Sauron deceived Ar-Pharazôn, last king of Númenor, into thinking the ruler of the Undying Lands would himself be undying, and the king prepared to invade. To prevent this, Ilúvatar destroyed Númenor and placed the Undying Lands beyond the reach of mortals, although Elves could still sail there. A few others have been said to have made the journey by special permission: the Hobbits Bilbo Baggins, Frodo Baggins and Sam Gamgee, the Dwarf Gimli and several others with mortal blood: Earendil, his father Tuor and his wife Elwing.
An army of men from Numenor also landed breifly in the Undying Lands, but they had been forbidden from doing so, and were buried beneath falling mountains for this transgression.
