નીચેનામાંથી કયું પ્રાચીન ઇન્કા દ્વારા બનાવવામાં આવ્યું હતું?

Machu Picchu, a 15th-century citadel high in the Andes of Peru, was built by the Inca Empire. Petra was built by the Nabataeans (Jordan), Hagia Sophia by the Byzantines (Istanbul), and the Acropolis by the ancient Greeks (Athens).