A free minerals-and-fossils museum inside a 1920s building with a stunning glass roof and tiered wooden galleries; mostly local families and school groups.
- Address
- Calle de Ríos Rosas 23, 28003 Madrid
- Hours
- Hours not verified 2026
- Best time to go
- Morning · About 1 h
- Price
- Free
- Price level
- €
Details can change. Check hours and prices before you go.
Good to know
- Free entry; bring ID at the door (not verified 2026).