el molino

el molino moh-lee'-noh (noun)
windmill
1. El refrán "viendo gigantes donde hay molinos" proviene de la historia de Don Quijote, en la que el protagonista hace precisamente eso.

The saying "tilting at windmills" comes from the story of Don Quijote, in which the protagonist mistakes windmills for giants.

2. Se piensa que los primeros molinos se usaron en Persia durante la Edad Media.

It is believed that the first windmills were used in Persia during the Middle Ages.