BBC - MYTHS AND HEROES: THE QUEEN OF SHEBA: The great dam at Marib, Yemen

A view across the valley where the dam once held back a great lake. The sluices are still intact, and the anchor tower on the far side can be seen at the left of the picture, 750m awayNikon F5, 17-35mm, Fuji Velvia 100
The great dam at Marib, Yemen

A view across the valley where the dam once held back a great lake. The sluices are still intact, and the anchor tower on the far side can be seen at the left of the picture, 750m away 

Nikon F5, 17-35mm, Fuji Velvia 100