Definitely the most amazing tree I've seen in my whole life. I took this photo in Seville, Spain. If you wish, you can view a detail at this link and some preparatory photos here below.
Ficus macrophylla, commonly known as the Moreton Bay Fig, is a large evergreen banyan tree of the Moraceae family. It is known for its beautiful buttress roots. It can reach heights of 60 m (200 ft). The trunk can reach a diameter of 2.4 m (8 ft).