The "Holstein Gate" is the west gate of the old city, so it faces the west part of the city wall is very thick, the two towers are equipped with shooting holes, there are earth cannons in the building, the small windows of the middle gate building are used to splash asphalt and boil water, of course to fight the enemy of the siege. For the history of the construction of the ancient city of Lübeck, the "age" of Horstan Gate is not too big, just guarded the ancient city for more than 600 years, but the polishing of the years still makes it overwhelmed, not only sinking but also tilting, and I don't know how many years it can guard the ancient city.