A vantage point is a place from which you can see a lot of things. From a concealed vantage point, he saw a car arrive = viewpoint
a place from which something can be viewed; "from that vantage point he could survey the whole valley
If you view a situation from a particular vantage point, you have a clear understanding of it because of the particular period of time you are in. From today's vantage point, the 1987 crash seems just a blip in the upward progress of the market = viewpoint. A position that affords a broad overall view or perspective, as of a place or situation
position of superiority; location or position that provides a broad view; personal point of view
a place from which something can be viewed; "from that vantage point he could survey the whole valley"