Colourful costumes were on display at a family Purim house party in Golders Green.
Celebrations at the London Jewish Cultural Centre, in North End Road, attracted more than 200 children and adults dressed as superheroes, pirates and even Elvis.
Activities on Sunday included spray painting masks, decorating armour and dancing in a flashmob, as well as listening to the ancient story of Purim.
The holiday commemorates the story of how the Jewish people escaped the oppression of Haman, an advisor to the king of the ancient Persian Empire.
Jewish people mark the annual holiday by dressing up and giving gifts of food and drink.