I was going to argue the same point until I looked up Grenoble to find that the city is actually only a couple hundred meters above sea level. The surrounding mountains are much higher, but not the city itself. It's kind of a tricky way of asking the question, in that you're tempted to figure out the Winter host as opposed to the Summer, but I like it.
The one for the Eiffel tower was even called Exposition: https://en.wikipedia.org/wiki/Exposition_Universelle_(1889) I tried the combinations you mentioned, too, and just couldn't come up with the word fair.