Couldn't go through the A to Z without mentioning him once. Over one hundred years ago, in 1911, before he'd begun to write most if not all of his legends and stories, Tolkien went on a hiking tour in Switzerland.
Now a company called Alpenwild is featuring recreations of Tolkien's trip:
Lots of places claim to be the "real" Middle-earth, though of course it all depends on which part of Middle-earth you're seeking to experience. Hurst Green in Lancashire, which I visited two years ago, is undoubtedly close to what The Shire must be like.
Lauterbrunnen, meanwhile, where Tolkien walked in 1911, might just be the inspiration for Rivendell.
Here are three pictures that Tolkien drew of Rivendell:
And here are some Google screenshots of Lauterbrunnen:
I'd like to take the Tolkien tour myself someday, though it's rather far from Geneva (says the one who's come all the way from Canada!) and I'm afraid of heights.
The tour concludes at the new Greisinger Museum, a private collection of Tolkien and Hobbit related items now open to the public:
Sounds like a great trip!