A sculpture of a chimera, a hybrid monster from Greek mythology with the body of a goat, the tail of a serpent or a dragon, and the head of a lion, located on the roof of Atocha Station.
Atocha Station is on the Art Walk and was the first railway station to be built in the city. Officially opened on 9 February 1851 to mark the building of the second railway line in Spain (linking Madrid and Aranjuez), today it is an excellent rail connections hub.
More info: https://www.esmadrid.com/en/tourist-information/estacion-de-atocha