3-D boundary
At Desirée Geeraertstraat 2, there's an apartment building with a Belgian and a Dutch front door. Read more
At Desirée Geeraertstraat 2, there's an apartment building with a Belgian and a Dutch front door. The Belgian door was added because no more new apartments were allowed in the Netherlands. With the additional front door, some of the new apartments could be permitted in Belgium. The Belgian apartments are located on the second floor, effectively creating a 3D boundary.