The Azotea of the Círculo de Bellas Artes
The Círculo de Bellas Artes at Calle Alcalá 42 has a rooftop, the Azotea, with the Minerva statue and a full view over Gran Vía, Alcalá and the Metropolis dome next door, the most photographed building in the city. About €5 by the lift on the ground floor, with a bar up top.
When: All year; sunset is the slot, about 19:30 in early October and 18:45 by the end. Sundays close earlier.
Seen on Sara Sabaté on YouTube, 36k views.
Photo Jean-Pierre Dalbéra, CC BY 2.0, Wikimedia Commons.