After walking through Puerta del Vino, take a moment to look back. This sandstone façade praises the reign of Muhammed V. He was the ruler of the Emirate of Granada twice during the 14th century. The key is a tribute to his domain. There is also Arabic text which reads, “Glory to our Master the Sultan Abu ‘Abd Allah al-Gani Billah.” So why is this called the Wine Gate? Apparently, when people carried wine through this arch starting in the mid-16th century, it was exempt from taxes.