<page_title> 15 October 2011 global protests </page_title> <section_title> List of gatherings by city </section_title> <table> <cell> Spain <col_header> Country </col_header> <col_header> (lower) </col_header> </cell> <cell> Madrid <col_header> City </col_header> <col_header> (upper) </col_header> </cell> <cell> 500,000 <col_header> Estimated attendance </col_header> </cell> </table>
On 15 October, 2011, the largest protests took place in Spain, where 500,000 people gathered in Madrid.