Claim: Brussels Metro Station Line Two, which runs a small ring under Brussels, was expanded in 2009, and connects with Line Six at the Osseghem Station, as well as Simonis, Beekkant, Gare de l'Ouest, Delacroix, and many other stations.
Evidence: Between the Yser/IJzer metro station and the Porte de Hal/Hallepoort station, the line runs under the small ring road of Brussels, which is itself built on the former Second walls of Brussels.