August 9, 2011

Ancient Ruins, Portugal

Photograph by Peter Essick, National Geographic

This Month in Photo of the Day: National Geographic Magazine Features

The ruins of an ancient village submerged by the construction of a hydroelectric dam resurface when lake levels are low. The park's man-made attractions range from medieval castles and pilgrimage sites to modern resorts.

See more pictures from the July 2011 feature story "The Delicate Balance of Portugal's Premier Park."

See more pictures of European National Parks »
See Your Portugal Photos »


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