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Begin your explorations in the Plaza de Mina, a large, leafy square with palm trees and plenty of benches. Look out for the ornamental facade on the Colegio de Arquitectos (College of Architects), on the west side of the square.
At 150 feet tall, this watchtower is the highest point in the old city. More than a hundred such structures were used by Cádiz ship owners to spot their arriving fleets. A camera obscura gives a good overview of the city and its monuments. The last show is held 30 minutes before closing time.
