«Una duende en el Observatorio Astronómico» It is a children’s story. In this new adventure, Elva will have to help her cousin Oldton to catch the intergalactic train. To do this, they must enter the Astronomical Observatory, located in the Retiro. The mission of Elva and Oldton will take them to visit the charming library and to make contact with important scientific objects, such as Foucault’s pendulum or the reproduction of the enormous Herschel telescope. This highlights the scientific wealth that exists in the Paseo del Prado and Buen Retiro: landscape of the arts and sciences. | Get it in «Una duende en el Observatorio Astronómico».