Baarle-Nassau is a little town in the South of the Netherlands. What makes it special is that there are numerous little exclaves of Belgium just next to this town. The borderline is extremely complicated. At many places it is depicted on the ground, which allows you to take funny fotos.
The “Belgian part of Baarle Nassau” is called Baarle Hertog. It consists of 26 pieces of land separated from each other (see the map below). The complexity of the border is a result of medieval treaties between the Dukes of Brabant and the Lords of Breda.