1 of 10
Fireworks crackled across most of Europe at midnight, including Prague.

2 of 10
The Czech Republic is one of 10 countries that joined the EU on 1 May.

3 of 10
Fireworks exploded elsewhere, with the EU flag raised proudly from Riga to Nicosia.

4 of 10
In Budapest and other capitals, revellers were determined to celebrate their new gold stars in style.

5 of 10
A Polish man crossed a bridge from Poland to Germany with a banner showing the flags of all 25 EU members.

6 of 10
The Poles also marked the moment with an army guard of honour. An anti-EU banner showed not everyone welcomed the change.

7 of 10
Cyprus, along with Malta, has moved the EU's borders further out into the Mediterranean.

8 of 10
Germany, the old EU's biggest state, welcomed its 10 new partners with a children's rendition of the European anthem in Berlin.

9 of 10
Czechs came to their borders with the West to see them vanish on a truly historic night.

10 of 10
The entry of Russia's erstwhile satellites into the EU was barely reported in Moscow, quietly preparing for its May holiday season.