The occasion is part of the "One month to go" campaign, countries such as, Austria, Lithuania, Belgium, Italy, France, Ireland, Slovakia, Malta and Spain are taking part.
![The Arc de Triomphe is illuminated in the EU colors to mark Europe Day, in Bucharest, Romania, Thursday, May 9, 2024 The Arc de Triomphe is illuminated in the EU colors to mark Europe Day, in Bucharest, Romania, Thursday, May 9, 2024](https://static.euronews.com/articles/stories/08/42/73/46/1200x675_cmsv2_7ff88de3-83dc-500e-9205-84e80f5305b2-8427346.jpg)
Video. Key European buildings are illuminated
The occasion is part of the "One month to go" campaign, countries such as, Austria, Lithuania, Belgium, Italy, France, Ireland, Slovakia, Malta and Spain are taking part.