It takes about 30 minutes to climb the cross mountain, and a total of 721 steps from the foot of the mountain to the top of the mountain. Why do I remember it so clearly! Because the number 721 is exactly the same as my birthday, it's a coincidence! In Cologne, the best place to watch the sunset is the top of the Cross Hill. Actually, the original name of the cross mountain was called Mt Tapyas. Because there is a steel cross on the mountain, it is called the cross mountain. No matter where you are in town, you can see this cross as soon as you look up. It is said that it is intended to bless the people of the town forever and ever. When night falls, the cross will light up.