Torre Tavira - Cadiz
The Tavira tower was part of the palace of the Marquis of Recano and was named after its first watchman D. Antonio Tavira.
45m above sea level it was the highest lookout point in Cadiz and hence designated the official watchtower of the town. Now the tower has become a Camera Obscura. An interesting device consisting of a white concave screen inside the tower that allows you to see what is happening outside the tower via an optical effect.
For more information on the camera obscura visit the following link: http://www.torretavira.com