Gondolin as the most beautiful elven city destroyed by Morgoth and his dragons and balrog holds a special place in my imagination but I haven't yet read the book published a couple years ago compiling his various versions of the story (Tolkien's first actual tale of Middle-Earth written in hospital after the Battle of the Somme during WW1) and the beginning, of the man Tuor and his finding the sea as the first man to do so as a romantic survivalist who just likes fishing and following swans as signs of the gods, is remarkably wondrous.
No other fantasy series can ever produce this level of desire for camping.