Hôtel des Monnaies (French) or Munthof (Dutch) is a Brussels Metro station on the southern segment of lines 2 and 6. It is located under the Small Ring (Brussels' inner ring road), near Saint Peter's Hospital, in the municipality of Saint-Gilles, south of the City of Brussels, Belgium. One of its entrances is on the Rue de l'Hôtel des Monnaies/Munthofstraat, after which it is named, and where Belgian currency used to be minted. The metro station opened on 2 October 1988 as part of the Louise/Louiza–Gare du Midi/Zuidstation extension of line 2 from Simonis. Line 2 has since been extended beyond Gare du Midi to Clemenceau in 1993, Delacroix in 2006, and Gare de l'Ouest/Weststation in 2009. Then, following the reorganisation of the Brussels Metro on 4 April 2009, it now lies on the joint section of lines 2 and 6. During the construction, work on the metro tunnels ran up against the foundations of Brussels' old city walls, which ran 10 m beneath ground level. These walls now form part of the station.