Ian McKellen reads the 1798 version of Samuel Taylor Coleridge's "The Rime of the Ancient Mariner" ("The Rime of the Ancyent Marinere").

PART I: 0:05
PART II: 3:48
PART III: 6:36
PART IV: 10:23
PART V: 13:45
PART VI: 19:52
PART VII: 25:44

(thank you to Chris from the comments for the timestamps)

Buy it at http://www.mckellen.com/audio/rime.htm