Considered to be one of the New Seven Wonders of the World in 2019, Machu Picchu is a man-made structure situated in the Andes Mountains in Peru. One of the things that makes it so special is that even though it was built in the 1400s, it was not discovered until the early 1900s, giving it a long-lasting opportunity to keep its form and magnificence when it comes to architecture and engineering. This ancient citadel was built by the incredible Inca civilization many centuries ago.