The abstract geometric optical glass art of Václav Cígler (b. 1929), Lubomír Arzt (1946-2015), Miloš Balgavý (b. 1955), Pavol Hlôška (b. 1953), Zora Palová (b. 1947) and Štěpán Pala (b. 1944) was on display in in "Escher in het Paleis" in The Hague  from 7 July to 8 November.

In Glorious Glass Escher in The Palace showed the finest optical glass from the Stichting Modern Glas collection, in collaboration with Kunstmuseum Den Haag. 

Václav Cígler, Jan Fridrich, Gap, 1968/2004

Miloš Balgavý, Sphere, 2002