Park of the Labyrinth of Horta in Barcelona

You're standing at the Parc del Laberint d'Horta, the oldest historical garden in Barcelona. You're on the edge of the city here, right up against the wooded Collserola ridge. Take a look at the building next to the entrance. That was the palace of the Desvalls family, with neo-Arabic and neo-Gothic touches. Beside it stands the Torre Sobirana, an old medieval watchtower.