Lindoso, Peneda Geres National Park, Portugal, June 2011. For many centuries Lindoso played a key role in the defence of the Portuguese frontier. Its main attractions today are the castle, and one of the country's best-preserved collections of espigueiros (granaries) that are still in use by the local population for the storage of corn. In the extreme North of Portugal, between the Atlantic Coast and the Spanish border are the mountains and valleys of Peneda Geres National Park. Walk along narrow shepherd trails or on the ancient cement of Roman roads. From lush river valleys to bare rocky mountain peaks.  Photo by Frits Meyst/Adventure4ever.com