Third hand of the story

I believe that Shelley wanted the reader to experience the story from the third person point of view because it adds more dramatization and mystery to the poem. Also, this makes you wonder who the traveller was and where this antique land is that he speaks of. Furthermore, what propelled this traveller to stop and tell the story of this place with the sunken ship. Is there a significance to this place? It makes the reader want to know the rest of the story. Also, if the ship is the only thing that remains around, why was the traveller there in the first place, and what was the purpose of the ship going to this antique land? This poem made me feel like I wanted to be a part of this conversation to find out more. I believe this was Shelley's personal way of engulfing the reader in his poem.