Christophe Berdaguer and Marie Péjus named their building “Gue(ho)st House” after Marcel Duchamp’s aphorism “A guest + a host = a ghost,” which appeared on a piece of ephemera he made in 1953. The duo translated the artist’s wordplay into architect-ural form, and said: “A house is a place where the hosts and guests share spaces. This project is like a third person, who in this context, looks like a ghost.”  Photo 1 of 1 in Surrealist Architecture: Synagogue de Delme in France