Backpacking Light posted an excellent article yesterday about the Via Alpina, a relatively new route that traverses eight countries in Europe.
The route combines a network of pre-existing long distance trails that traverses more than 1200 miles as it passes through Italy, Slovenia, Austria, Germany, Liechtenstein, Switzerland, France, and finally down to Monaco on the Mediterranean.
The author, Brandon Wilson, provides a great trip report. The photos themselves are well worth the click!
It's a shame there aren't more hut hiking opportunities in the United States, similar to what you find in Europe. As far as I know, there are only three areas in the U.S. that provide hut hiking opportunities: the 10th Mountain Division Hut System in central Colorado, the Appalachian Mountain Club hut system in New Hampshire's White Mountains, and the High Sierra Camps in Yosemite National Park.
Please let me know if you know of any others.