The "windmills" part refers to the windmill-powered pumps (Archimedes screw-type) on these salt flats. Water is pumped into the various holding sections, and evaporated to collect the salt in these huge mounds.
Here is one of the windmills.
Kimberly couldn't be happier, surrounded by this much salt. They put these tiles on the salt piles to keep it from blowing away.
The second stop is a winery that specializes in Marsala wine. This is their logo.
Here is the aging room with the oak casks.
The first part of the crushing machine.
And one of several mascots.