Trompe-l'œil (French for "trick the eye" from tromper - to deceive and l'œil - the eye; pronounced as "trom ploy") is an art technique involving extremely realistic imagery in order to create the optical illusion that the depicted objects really exist.
Saint Ferréol Church in Orgueil, Vault in trompe-l'œil of the choir.
Genova - Palazzo Ducale
Painted ceiling in the church Santa Maria del Corlo in Lonato/Italy
Dome fresco in the Church Santa Maria della Carità in Brescia/Italy
Villa in Brescia/Italy with a facade of false architecture
The staircase group, by Charles Willson Peale
Gallery in château de Tanlay, Burgundy, France
"End of the world" in the gardens of Schwetzingen