The Ou com Balla (dancing egg) tradition dates back to the 17th century, originating in the Barcelona Cathedral. The tradition takes place on the day of the Feast of Corpus Christi, 60 days after Easter. In addition to the cloister of the Barcelona Cathedral the tradition is celebrated in a number of other locations in Barcelona, including the gardens of the Museu Frederic Marès and the Ateneu Barcelonès.
The Ou com Balla in the garden of the Ateneu Barcelonès