Palazzo dello Spagnolo is one of the great theatrical courtyards of Naples, a baroque palazzo in the Sanita district famous for its sweeping double staircase. The building turns an entrance hall into a stage set, all curves, arches, and movement.
You normally see it from the courtyard rather than as a formal museum visit, so be respectful: this is part of a lived-in neighbourhood, not a polished attraction. Combine it with a walk through Sanita, where aristocratic architecture, street life, and underground history sit close together.