Photo of the Day

Ruins of an ancient village emerge from a lake

Ancient Ruins, Portugal

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."


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Photograph by Peter Essick, National Geographic