Madrid packs an unusual mix of art, history and street life into a compact center, so prioritizing is easy. The Museo del Prado anchors the Golden Triangle of Art, its halls holding centuries of Spanish and European masterpieces, while the Royal Palace of Madrid impresses with sheer scale and opulence just a short walk away. Puerta del Sol serves as the city's beating heart, a hub for shopping, meeting friends and soaking up energy day or night. Round out a short stay with Retiro Park for a slower pace among gardens and a lake. Together these choices deliver the essential Madrid experience without wasted steps.