Participation and a community spirit have given shape to the more than 400 activities that celebrate the bicentennial. Participation is one of the axes of this year's special programme, which uses memories to project from the past toward the future. The nerve centre of the commemoration is the big marquee set up in the Jardinets de Gràcia. The temporary construction re-creates a traditional 19th-century dance hall with all its charms. You'll find it filled at various times with exhibitions, conferences, music, dancing, and plenty of fun in this hub of the Gràcia festival bicentennial.