Architecture & Design on Instagram: "Did you know it took 632 years to build the Kölner Dom? Construction began in 1248 and wasn’t completed until 1880, making it one of the longest building processes in architectural history. Rising above #Cologne with its twin Gothic spires, the #cathedral is a masterpiece of medieval ambition, designed to house the relics of the Three Kings. Despite wars and the passage of time, the Kölner Dom remains a powerful symbol of faith, craftsmanship, and endurance.