I think these temples on Mount Qingcheng are always exceptional, but the mist and the rain adds to the mystery for sure.
It's both a bless and a curse to be in a place like this with bad weather: minimal amount of tourists, compared to the normal, but you won't see the top of the buildings yourself either.
(Oh, by the way: this entry was written by Peter Molnar, and originally posted on petermolnar dot net.)