Sevilla is one of the must-see cities on your trip to Andalusia, the southernmost region of Spain. The Andalusian capital is exceptionally rich. With its cathedral, medieval streets, and sunny squares, it's the kind of city that people fall in love with on their first visit. The city is crossed by the Guadalquivir, a 602-kilometer-long river that rises in the Sierra de Cazorla and flows into the Atlantic Ocean in the Gulf of Cadiz. The Alcázar is a timeless city landmark with a succession of splendid palaces, mixing Moorish, Gothic and Baroque styles. But Sevilla is also and above all a festive city where the tapas bars and flamenco invite you to party in the narrow streets of the old quarter of Santa Cruz.