Roads of city centre in Barcelona or leading to it are having trees on both the sides. A feature that Maharaja of Jaipur laid down when he founded Jaipur. You can still see some trees on some roads of Jaipur within the walled city. However when I saw this on the roads of Barcelona I felt pity that our city of Jaipur could be as beutiful as Barcelona roads are but alas trees are not favourites of Jaipurites though JMC and JDA spend much money and built beutiful gardens out side the walled city but walled city could also have trees on the pattern of Barcelona of Spain.
Roads of Barcelona are full of trees: