Last year marked the 100th anniversary of the discovery of Machu Picchu and the first successful expedition to the South Pole. Why not resolve to make your own adventurous discoveries in 2012? There has rarely been a better time to do it. Around the globe, the world's top adventure travel outfitters are busy unveiling more new trips than you can shake a hiking stick at. And whether your particular brand of adventure involves walking, biking, kayaking, rafting, sailing, or just kicking back and discovering an emerging destination, these new trips will leave you feeling like a real explorer.