A tower mill is a type of vertical windmill consisting of a brick or stone tower, on which sits a wooden 'cap' or roof, which can rotate to bring the sails into the wind.
cap ?
cap
No he didn't put a windmill, but I think he added solar panels on the roof.
you jump up on the windmill and it will spin it clockwise. keep doing it until the little dome on the roof is open.
It is called Windmill Vandals
Windmill vanes are called blades or sails. These are attached to the rotor of the windmill and capture the wind's energy to generate power or perform mechanical work.
Go inside the mill, on the second floor, and hang from the rope that unlocks the mill gears. Then go outside and climb on the windmill arms to turn them counter-clockwise. This will open the roof dome. (see related question)
There is no key. Release the gear lock, then go outside and climb on the windmill arms, turning them counter-clockwise. This will open the roof dome.
You click and spin the windmill blades, and then when all three are spinning, the light will turn on in the house, and you will pull the right side of the roof up, and the PLAY button will be there! :)
The famous technique where you swing you arms in windmill like motion is called the windmill.
They are called arms
There isn't an amount, you have to jump on them until the roof opens up.