Generations of tourists have flocked to visit Barcelona's spectacular — but still unfinished — Sagrada Familia.
Work began on the Basílica i Temple Expiatori de la Sagrada Família in 1882 with Catalan architect Antoní Gaudi taking the reins a year later.
Some 120 years on, the building is still a hive of busy stonemasons, and the church may well be the only unfinished edifice in the world to be declared UNESCO World Heritage.
But the end is in sight.
If construction continues at its current speed, the cathedral is expected to be completed by 2026 — donations depending.
You don't have to wait until then to see the finished results though.
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The amazing video below needs just 90 seconds to take viewers through 15 years of construction, ending with the image of a fully completed cathedral.