Corpus Christi is an important festival in Valencia. It started in 1355 when the local bishop organised a procession through the city. Other elements and festivities were added through the centuries. It was banned by the republican government of Spain between 1931 and 1936. Since the 1970s the festivities have increased again.
Short film of Corpus Christi:
youtu.be/34uV6mBKIes
and a long one:
youtu.be/bK_5zG8lEiQ