Seethu

This is Nala Seethu as seen by satellites, this is in fact the only man made monument visible from space. This bridge was constrcuted by Nala, a general to Rama in his quest to attcak Lanka but it can be said he only reparied the road. As the story states that he filled in the gaps with rock and rubble.

The age of this bridge was identified to be around 8000-9000yrs old.