Introducing Japanese Things

Please introduce Japanese customs, food and people.

In Japan there are a lot of video rental rooms where you can watch porn videos and masturbate. Even many married men go to the rental rooms to watch X-rated video, because they don't have to worry about their wife's or children's eyes in that room. To watch videos about two hours you have to pay about 16 dollars. Are there this kind of rental video rooms in other countries?