In the north of Portugal’s Serras de Aire e Candeeiros Natural Park is an amazing collection of dinosaur footprints, some of the longest in the world. Before this site was a natural monument, it was a quarry. One day in July 1994, a young man discovered a set of footprints, then it was made a contract with the owner Rui Galinha. The site has been studied by scientists, and in 1997 it was turned into a Natural Monument. The animals were walking in a great mudflat, you can clearly see…
