The Masterpiece or The Mysteries of the Horizon (French: Le Chef-d'Oeuvre ou Les mystères de l'horizon) is a 1955 Surrealist oil painting by René Magritte.

Though they appear to be sharing the same space each one also seems to exist in a separate reality.

Men in bowler hats appear frequently in Magritte's work starting with his 1926 painting The Musings of a Solitary Walker.

Magritte made a gouache in 1964 with the same subject matter, also titled Le Chef-d'Oeuvre ou les Mystères de l'Horizon (The Masterpiece or the Mysteries of the Horizon)[1][2] The painting has been parodied many times, including by surrealist comedy group the Firesign Theatre on the cover of their 1977 album Just Folks... A Firesign Chat.

On the parody, each member of the Firesign Theatre appears wearing a different tie but identical suits and hats.