The door for employees to enter the house.
Ignore the empty pet bottles :). This is at the back of the house. My guess again, the door is closed permanently.
It's not open for public during normal days. There's a schedule available at the Communication Corner if you want to visit these places, and they will provide you with a guide to take the tour. But the best time to come is of course when the festivals.
This is probably the biggest sake house in town. It is situated between two streets.
Yuri San: Ookii desu ne (It's so big)
Hiro San: Yahari sake ga ippai desuyo! (Must be a lot of sake in there)