Exterior view

The Observatorio Astron�mico was Villanueva’s last great creation. This building on a cruciform ground plan is, in spite of many changes, an important example of how Neo-classical design penetrated Spanish architecture. Functionality and geometric rigor were the criteria for the design: in contrast with the Corinthian portico with a central reception room dictated by the rotunda, variety was introduced into the scheme and a setting was made for decorative features. Nevertheless, the building is practical to the highest degree.