In an archaeological investigation of modern-day Mexico City, archaeologists could possibly discover remnants of temples from Tenochtitlán. Tenochtitlán was the capital of the Aztec Empire, situated on the site of modern-day Mexico City.
The other options, such as colonial Catholic churches and Machu Picchu, are relevant to other historical contexts and locations, while the Coricancha is a site in Cusco, Peru, associated with the Inca civilization.