I'm fond of the genre that walks the line between travel video, guest experience, and documentary. Most of the videos are street food, or other forms of cooking where the food is prepared in front of the customer. High quality video with no real talking. Learn by watching. I can get lost in this type of video for hours.
That's from "Travel Thirsty." They have a ton of similar content, but is one of the videos I learned the most from.