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200 years ago they called it madness. Today, the Sagrada Familia is the unfinished symphony that survived wars, apathy, and doubt—just like the Great Wall of China, which took over 1,800 years to complete and was abandoned for centuries before becoming a symbol of resilience. As Barcelona’s cathedral nears its final stone in 2026, history whispers: the greatest monuments are forged not in a lifetime, but across generations. SagradaFamilia LegacyInTheMaking