LOCATION
Verifying the location of a video depends on a careful assessment of unique identifiers: geographic, cultural, clothing, language used, and so on.
Each of these can provide contextual clues to the location or corroborating information. Search for useful information (street signs, car license plates, buildings, street furniture, etc) that can help you pinpoint an exact location, through search or mapping.
Make use of freely available mapping tools, Wikimapia, Yandex, Baidu, Google Maps, and Bing Maps.
If there are landmarks (such as a mosque, a water tower), filter by building type on Wikimapia: