The Romantic Gardens of Palácio de Cristal occupy an area of 8 hectares in Porto's centre and they were designed in the 19th century by the German landscape architect Émille David, in the context of constructing the building of Palácio de Cristal (Crystal Palace). Currently, the following still remain preserved in accordance with the original project: Jardim Émille David at the main entrance, Avenida das Tílias, the forest and the balconies' design over the river Douro. We can also contemplate magnificent panoramic views over the river and the city that the viewpoints in strategic places offer to us. It is to be noted that these gardens, making a good use of the botanic heritage and of the ludic-cultural dynamics, is home to an Environmental Education Centre.