On sunny days this is a great place to sit and to take shelter at the square's eastern end, should it rain. The élite of Seville society use this square as a meeting place so it's a fantastic spot for people-watching. The plaza is also a good place to hail a taxi should you need one.
Plaza Nueva is close to the cathedral at the end of Avenida de la Consitución.
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It is a calmer and cleaner place to visit, but loses the character of Sevilla a little now.