The Antiguo Palacio de la Inquisición is now the UNAM Museum of Medicine - two floors of well-curated exhibits on medical history in the Americas, housed in a 1736 baroque building of carved stone that justifies the visit on architecture alone. Free entry, no significant queues, and guides who demonstrably deepen the experience. The weight is real: Hidalgo and Morelos were held in its dungeons. The catch is structural: the name promises Inquisition, the content delivers medicine, and this gap creates documented confusion, especially among international travelers. No photography allowed inside.
The building alone is worth crossing the Centro for: the baroque cantera and tezontle facade stops you before you even walk in. It houses the Museo de Medicina de la UNAM, free to enter, but come knowing it is a medical history museum, not an inquisition one, or you will leave disappointed
When to go
Noche de Museos (Museum Night) is peak time; weekdays mean minimal crowds.
How long
Two accessible floors, leisurely pace; budget two to three hours with a guide.
Do not miss
The colonial architecture and dungeon spaces - the building itself is the draw.
Good to know
No photos or recordings allowed inside. Entry is free; no reservation required.