At the time of this writing, four apartments are available two steps away from the Opéra Royal de Wallonie, in Liège.
So here are some activities to plan during your little cultural and musical night out: http://www.operaliege.be/en/activities ; a reason to join in on the debate on whether the renovation of the building is a success or not (it’s supposed to be architecturally splendid but the Pen writing these lines does not find it so beautiful, it looks like someone forgot to remove scaffolding from the facade); and finally, 4 possible ways to spend the night in a magnificent studio for two (on the 3d floor or on the 4d floor of a building with an elevator) or in a tastefully decorated apartment (Opéra Royal or View over the Opéra)!