You can learn a lot about scientific advances from going on a tour of a medical facility. Check to see if Hospital Sanitas La Zarzuela is open to the public while you're in town.
This health care institution is free to visit, so you can have a great time without spending a thing. However, Hospital Sanitas La Zarzuela isn't the only place to visit in or around the affluent ward of Aravaca. With Prado Museum, Plaza Mayor and Santiago Bernabeu Stadium within reach, you may be tempted to stay a little longer.
