Vennbahn        (German exclaves in Belgium)

Five exclaves  created by a Belgian railway track that cuts into German territory between the German towns of Rötgen and Monschau, south of Aachen. Belgium owns the railway track with the territory on which it is built, making enclaves out of the five pieces of land separated from the rest of Germany.

The exclaves are called Munsterbildchen, Rötgener Wald [which comprises the southern parts of the town of Rötgen], Rückschlag, Mützenich and Ruitzhof.

At boundary marker no. 750 it may look on this Belgian map like the Mützenich enclave is connected to Germany proper over the railroad. But  the Germans, who show the road as Belgian would surely be the most likely of the two parties to show it correctly if it was German. Therefore we conclude that Mützenich is a German exclave.

Links:
«The Vennbahn - Belgium's railway through Germany» (English): http://www.rinbad.demon.co.uk/be_venn.htm

«Vennbahn Online» (German): http://www.vennbahn.de/