Cologne Cathedral is a Roman Catolic Church in cologne of Germany which was built between 1248 and 1880. It is 144.5 meters long , 86.5 m wide and its towers are approximately 157 m tall. With the average of 20000 people a day attend in the church which is the second tallest spire, largest Gothic church in Northern Europe and largest façade of any church in the world. In 1248 the site had been occupied by several
structures of which may have been grain store succeeded by a Roman temple built by Mercurius Augustus and in 4th century the site wsa occupied by Christan buildings. But in 320 April the building was burned down. On 15 August 1248 the foundation stone was laid by Archbishop Konrad von Hochstaden. Under the direction of Master Gerhard the eastern arm was completed which consecrated in 1322 and sealed off by a temporary wall so it could be in use as the work proceeded.Under Master Michael the west front work commenced in the mid 14th century. For 400 years this work halted in 1473, leaving the south tower complete up to the belfry level and crowned with a huge crane which was destined to remain in place, and a landmark of the
Cologne skyline. Since wind, rain, and pollution slowly eat away at the stones some repair and maintenance work is constantly being carried out in some section of the building, which is almost never completely free of scaffolding. The Dombauhütte, which was established to build the cathedral and repair the cathedral. With 113 square metres of glass, a new stained glass in the south transept window take place which was created by the German artist Gerhard Richter On 25 August 2007.In 1996, the cathedral was added to the UNESCO World Heritage List of culturally important sites.
In 2004 it was placed on the "World Heritage in Danger" list.