A few of M.C. Escher's lesser-known works survive in the Leiden city hall (Stadhuis) on the Breestraat. Three carved pillars and a smaller decorative element in stone show the play of geometry and figure that would become his trademark in later prints — but in the heavy, monumental medium of public architecture.
The Stadhuis is a working town hall, not a tourist attraction. Ring the reception bell during office hours and ask to see the Escher pillars; staff are used to the request. It takes ten minutes and rewards anyone who cares about Escher's evolution as an artist.