Located close to the highest point in the Netherlands is a tiny little house known as Kleng Wach, Kleine Wache, or the Small Watch. It has marked the border for over a century, and the stone next to it for much longer. The building was built somewhere in the 1890s on one of the main streets between Germany and the Netherlands near the town of Vaals. It was used until 1995 when the Schengen Agreement made it obsolete. Not long after, the municipality of Vaals rented out the building to…