Everyone is always ready to go on a new adventure. Whether you want to eat your way through a foodie mecca, immerse yourself in a new culture or explore remote trails in untamed frontiers, the new year is the best time to set new goals and take action. So, it probably comes as no surprise that at the start of each year, Americans resolve to travel more. Yet according to The Travel Effect, a study released by the U.S. Travel Association, more than 4 out of 10 U.S. employees ended 2013 with unused time off -- an average of more than three paid days forfeited per worker. So, why are U.S. workers depriving themselves the chance to experience somewhere new? "A lot of Americans would love the concept of traveling, but they never made the time for it," explained Joe Diaz, co-founder of AFAR, a multiplatform media company that includes the travel magazine AFAR and AFAR.com. With a mission to inspire people to have meaningful travel experiences across the globe, AFAR also encou...