Puente Nuevo, El Tajo Gorge; Ronda, Spain

The Puente Nuevo (“New Bridge”) spans the 390ft-deep El Tajo gorge that divides the city of Ronda, located in Andalucia, Spain.  The bridge, which was completed in 1793, took over 40 years to build and includes a small chamber over the central arch that was allegedly used as a prison and torture chamber during the Civil War.