I'm starting to reread an old favorite, Roland Huntford's "The Last Place on Earth" first published in 1980 and later covered in a PBS Masterpiece Theater series about Amundsen and Scott's race to the south pole.

It's now out again and part of a Modern Library Exploration series selected by series editor Jon Krakauer. The list of books there look interesting. Of course JK's "Into Thin Air" is there too. But the others might be unknown and good reads.