Chocolates from around the globe are all the rage these days. You can find chocolates from all different regions in the Americas such as Trinidad, Ecuador, Venezuela (which is one of my personal favorites and one I use a lot at Compartes), Columbia and Costa Rica, to name a few.
Regional single-origin chocolates from places in Africa such as Ghana, Madagascar, Tanzania, Nigeria and the Congo region are also very popular. While chocolates from regions in Asia such as Papua New Guinea may be harder to find, they are available as well. You can pick up these "single-origin" chocolates in good health food stores, a local Whole Foods market or online for a fun way to compare the flavors based on where the chocolate is grown and cultivated.