Measuring 7.5 metres wide and weighing 5.5 tons, the star of the Virgin Mary was lifted into place fully assembled.

Made of textured glass with a stainless-steel structure on the edges, by day the glass will be lit by the sun and by night, the light will come from the spotlights installed at the base of each point inside the star.

The star will be inaugurated with a Mass and a blessing on December 8, when it will be lit up with spotlights at the base of each point for the first time.

The Sagrada Familia is one of the most complicated and time-consuming architectural projects ever undertaken, still unfinished 139 years after the idea for a church on the site was first discussed.

Incredibly, it emerged in 2016 that its construction had been illegal.

In June 2019, the church, which was named a UNESCO World Heritage Site in 2005, finally received its building permit.