This sprawling 500,000 sq m park along the Po River features tree-lined paths, the French-style Castello del Valentino (17th century Savoy residence, now Architecture faculty - exterior only), the whimsical Borgo Medievale (fake medieval village built for 1884 expo), botanical gardens, and lawns for picnics. Turin's green lung for jogging, cycling, and Sunday strolls. The castle's horseshoe staircases and mansard roofs reflect French influence. The medieval village recreates 15th-century Piedmont architecture with drawbridge, church, artisan shops, and furnished castle interiors (small entry fee). Free park access dawn to dusk. Popular with families, students, and couples. Summer concerts and events. Located 10-minute walk south from center or tram 15. The Po riverbank offers peaceful views.