The discussion in the percussion thread has been pretty quiet lately, so why not liven it up a little. As the title states, what are some of the best percussion solos you have heard in a classical piece? These can be solo's by one performer or a soli consisting of more than one instrument.
For me, the soli directly before the final canon in Britten's Young Person's Guide to the Orchestra, the quiet timpani solo a few minutes into the first mv't of Mahler's 5th (a nice recapitulation of the trumpet solo at the beginning), and the percussion soli at the end of the 4th mv't of Shostakovich's 15th symphony.
NOTE: I do realize that this is another installment in the heated TC "Favorite/Best" series, so I would like to emphasize this is about favorites and not best's.