Western Washington State gets a lot of flack for "bad" weather, but the rain forests of Olympic National Park make it all worthwhile. The 12 to 14 feet of annual rainfall in the Olympic Mountains yields an intensely lush landscape of moss-dropped cedars, towering spruces, and fog-shrouded Douglas firs, some 300 feet tall. The relative rarity of a rain forest in the United States has obvious appeal, though that's just one card in this park's ecological full house.
Good God there are so many places just in the US that I want to go to. This is definitely on the list now.