Cuatro Torres Business Area in Madrid, Spain. From the left - Torre Bankia (250 m or 820 ft; completed in 2008; designed by Sir Norman Foster), Torre PwC (236 m or 774 ft; completed in 2008), Torre de Cristal (249.5 m or 819 ft; completed in 2008), Torre Espacio (230 m or 750 ft; completed in 2008). These are the highest skyscrapers in Spain.