Its location has made Molins de Rei a strategic and dynamic municipality, with significant examples of commercial and industrial entrepreneurship.

Its name, Molins de Rei (which means King's Mills), has its origins in the royal windmills that existed in this area, documented as early as 1188.

When she died, the town changed owners to Hugo de Arborea and later on, it was transferred to the convent of Santa Clara in Sardinia (Italy).

The Romanesque chapel of Sant Pere de Romaní, known from 1011, has a rectangular shape, with a barrel vaulted ceiling, and a bell tower.

The Molins de Rei train station is served by RENFE railway lines R1 and R4 which run frequently to and from central Barcelona, taking roughly 25 minutes to and from Plaça Catalunya.