Explore details about location Calle de la Unión. Calle de la Unión is a location situated within the Valladolid alongside other areas such as Calle de las Eras, Avenida Monasterio Nuestra Señora de Prado, Calle Macizo de Gredos. Additionally, some smaller parts of Calle de la Unión include specific areas like Calle de Juan Bravo adding to the diversity of its landscape.