The tale of two Europes: New and old
Trade union protests are due to be held across Europe on Thursday.
In recent years the annual May Day rallies have been a focal point for anger at public sector cuts across the the European Union.
There will be celebrations though in other parts of the continent as they mark a decade of EU membership.
Chris Morris and Matthew Price report from Warsaw and Lisbon.
01 May 2014
- From the section Europe