La Mercè is an annual festival held in Barcelona, Spain, celebrating the city's patron saint, Our Lady of Mercy. It typically takes place in late September and features a variety of cultural events, including concerts, parades, and traditional performances. The festival attracts both locals and tourists, showcasing the rich heritage of Catalonia. During La Mercè, iconic activities such as the Castells (human towers) and Gegants (giant figures) are prominent. The festival also includes fireworks, street art, and various workshops, making it a vibrant celebration of community and creativity. It serves as a highlight of the city's cultural calendar.