We've got your back. With the Tough-O-Meter, you'll know whether to bring extra layers or Swiss army knives as you summit the literary mountain. (10 = Toughest)
(8) Snowline
Not only is this a long, long hike (be sure to pack plenty of GORP); it's also got lots of tricky switchbacks, like words in several different languages (check out the glossary we put together for you if you get lost). The cool part is that, with all that tough road, comes a grand adventure, so enjoy.