Cologne Cathedral

Cologne Cathedral is a renowned monument of German Catholicism and Gothic architecture, and the tallest twin-spired church in the world, standing at 157 meters high. It began construction in 1248 but was halted around 1560 and remained unfinished for centuries until its completion in 1880. The cathedral is home to the Archbishop of Cologne and the administration of the Archdiocese of Cologne, and is Germany's most visited landmark, attracting 6 million people annually. The construction of the cathedral involved multiple stages, with initial attempts beginning in the 6th century and subsequent completion in the 19th century, according to the original medieval plan.learn more on wikipedia