1/8 Fireworks lit up the sky above Ljubljana castle in Slovenia at midnight as it celebrated its new membership in the European Union. It's one of 10 new countires to join.
2/8 Flags were raised in Cyprus to mark the occasion.
3/8 Men on stilts held up the flags of EU and EU member states in Hungary's celebrations.
4/8 The German and Polich Foreign Ministers Joschka Fischer and Wlodzimierz Cimoszewicz embrace at the bridge between the two countries to mark Poland's entry.
5/8 More fireworks explode over the statue of an angel on one of Prague's bridges in the Czech Republic.
6/8 The Valletta Grand Harbour in Malta was transformed into a light and fireworks show.
7/8 Soldiers from the Polish Army Guard of Honor raised the European Union flag seconds after midnight.
8/8 And in Latvia hundreds of people celebrated during a gala We Are In Europe concert.
