IES San Isidro

The Instituto de Enseñanza Secundaria San Isidro (IES San Isidro) is a historic co-educational secondary school located in Calle de Toledo, Madrid, Spain. Established as part of the 1836 Plan General de Instrucción Pública, it traces its origins back to 1346, making it the oldest non-university education center in Spain. The school has a rich heritage, featuring a baroque cloister, staircase, and chapel, and has educated notable figures, including eight Spanish prime ministers and four Nobel Prize laureates. Visitors can explore a small museum dedicated to science and education within the school, which reflects its significant role in shaping Spain's leaders and intellectuals over the centuries.