It marks the official center of Madrid. Look for the “km 0” plaque on the ground, that's where all distances in Spain are measured from. And not using a subpoena, voluntary compliance within the Component of your Net Service Service provider, or added information from a third party, facts https://cristiandijkm.arwebo.com/58209941/not-known-details-about-organise-fairs-or-events-at-ifema-madrid