Cologne Cathedral, officially known as the High Cathedral of Saint Peter, is an iconic gothic masterpiece located in Cologne, Germany. It stands as a monument of German Catholicism and Gothic architecture, being the largest Gothic church in Northern Europe. Construction began in 1248 to house the relics of the Three Wise Men, and, despite interruptions, it was eventually completed in 1880. The cathedral boasts two massive towers, which dominate the city's skyline. It also has a richly decorated façade with innumerable sculptures and stained glass windows, one of which is the famous Gerhard Richter window made of 11,500 squares of glass. The cathedral's interior is equally impressive, with the Shrine of the Three Kings, a high altar, and an old choir enclosure. The site was awarded UNESCO World Heritage status in 1996. Cologne Cathedral is not just a place of worship but also an important tourist destination and a testament to the enduring skills of medieval craftsmen.