Raising the Towers of Sagrada Familia: Engineering the World's Tallest Church | Blueprint

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A build taking over 140 years finally nears completion, as the engineers and architects of Barcelona’s Sagrada Familia attempt to raise the six central towers that will make it the world’s tallest church. Already dominating the city’s skyline, soaring over 100 metres tall and attracting 4.5 million visitors each year, the stone towers will push the church’s height above 170 metres.