There are many good reasons to visit Viana’s eucalyptus-clad hill. The location offers an amazing view down the coast and up the Lima valley, along with a tram ride up the mountain. However, perhaps the most important feature of the hill is the 20th-century, neo-Byzantine Santuário de Santa Luzia. The temple honors Santa Luzia (Saint Lucy), the Patron Saint of Sight. The people of Viana still climb to the top on Sundays closest to the date of the Sacred Heart of Jesus’s celebrations. Architecturally, the building has a Greek cross…