Palacio de Cibeles

This imposing white palace dominates Plaza de Cibeles and houses Madrid's City Hall alongside CentroCentro, a surprisingly good cultural center with rotating contemporary art exhibitions. The building itself is the real draw: built in 1919 as Madrid's central post office, it's pure early 20th-century grandeur with soaring halls, ornate staircases, and detailed stonework. The eighth-floor viewing gallery gives you free panoramic views over the plaza and down Paseo del Prado, while the rooftop terrace costs 3 EUR for even better angles.

You'll enter through security (it's still a working government building) and can wander the ground floor galleries for free. The CentroCentro exhibitions change every few months and range from photography to design, usually well-curated but hit or miss depending on your interests. Taking the elevator to the eighth floor feels like accessing a secret viewpoint: suddenly you're looking down at the famous Cibeles fountain and across to the Prado's red-tiled roof. The interior courtyards are particularly photogenic from above.

Most people skip the 3 EUR rooftop terrace, but it's worth it for the 360-degree views and dramatic perspective on the surrounding architecture. The CentroCentro exhibitions are often overlooked by tourists focused on the Prado nearby, making them pleasantly uncrowded. Skip the building entirely if you're rushed: the views are lovely but not essential, and you can appreciate the exterior just as well from plaza level.