This is an antic refugi anti-aeri de la guerra civil (antiaircraft shelter from the Spanish Civil War) located near the coordinates 39.4782817,-0.376563 in Spain. Built during the Spanish Civil War (1936-1939), this shelter represents the defensive infrastructure constructed to protect civilians from aerial bombardment during one of Spain's most turbulent periods. The Spanish Civil War saw extensive use of air raids, prompting the construction of numerous public and private shelters across the country.
This particular shelter is part of Spain's network of approximately 400 private bunkers and only 4 public shelters that were built during this conflict, reflecting the limited but crucial civil defense infrastructure of the era.