The plazas de soberanía, meaning "strongholds of sovereignty", are a series of Spanish territories scattered along the Mediterranean coast bordering Morocco, or that are closer to Africa than Europe.
Aerial view of the Peñón de Alhucemas c. 1925
Peñón de Vélez de la Gomera, seen from the Moroccan coast, 2007. Its border with Morocco is 85 m (279 ft) long, making it the shortest international land border segment in the world.