5. In southeastern Luxembourg π±πΊ at the point where the country borders Germany π©πͺ and France π«π· we find the village of Schengen (pop. 4200) which was the site of the signing of the 1985 "Schengen Agreement" paving the way for free movement within what is today known as "The Schengen Area" (pop. 423M)
6. On a related note Luxembourg π±πΊ is one of four institutional seats of the European Union πͺπΊ (along with Brussels π§πͺ, Strasbourg π«π·, and Frankfurt π©πͺ).
Luxembourg City hosts various EU institutions including the European Court of Justice.
https://en.wikipedia.org/wiki/Institutional_seats_of_the_European_Union
#geoweirdness