My pick
My tip“Closed Monday; allow 2 hours. It is ideal for children, and free on some evenings (check the website).”
One of the oldest natural history museums in Europe (1771), with dinosaur skeletons, stuffed animals and collections of minerals and meteorites. It is a research centre of the Spanish Higher Council for Scientific Research.
Address
C. de José Gutiérrez Abascal, 2