The Propyläen are a monument in Munich, Germany, in the Königsplatz built in the second half of the nineteenth century. The doorway was inspired by the Propylaea in Athens, and is formed by a central entrance surmounted by a large pediment, with two towers in the side.

Gonzato Contract developed a system of fences that would safeguard its historical and cultural prestige without conflicting with the style in which the work was designed. In this spirit, railings were created with ends traced by hand.