The site is called BibleMap.com, and the way it works is this:
1) Chose your desired scripture from the drop down menus.
2) If the Google Map has relevant locations to that piece of scripture, then map icons will appear throughout the map.
3) Click on the map icons to read more that specific location, the history, geography, and associated Biblical references.
Some scripture is left out of the map because locations cannot be pinned down. Take for example The Book of Job. The exact locations are not known (at least not that I know of), so you can’t really display relevant Google Map icons.
You can check it our for yourself at >>
Let me know what you think below in the comments!