One of the most iconic examples of neon from communist-era Poland is the giant neon sign adorning the entrance of the Palace of Culture and Science (Pałac Kultury i Nauki) in the capital city of Warsaw. This neon sign dates back to the 1970s (construction finished on the building in 1955) and was renovated in late 2015.
- https://en.wikipedia.org/wiki/Palace_of_Culture_and_Science (PKIN at Wikipedia.)
- http://www.pkin.pl/zmieniamy-sie/4-neon-wejscia-glownego-do-pkin (Info about the sign renovations at the official PKIN website. Includes a gallery of stage by stage renovation pics. Polish language only.)
(Image copyright: Panek. Used via Wikimedia Commons per CC Attribution 3.0 Unported license.)