YouTube Trends Map provides a real time information on what videos are popular across the US by city/region & also can be filtered by shares, views, gender & age range. Videos uploaded within 48 hours may not appear in age and gender breakdowns. Hovering over the map, one can watch the thumbnail of the popular video in that region. There is also a bar graph at the bottom of the page showing number of regions where each video is #1. Right now, this is available for US. The Trends Map is based on user response to YouTube Trends Dashboard.