Machu Picchu is a historic site located on a mountaintop in the Andes of Peru, recognized as an example of Incan architecture and engineering. It serves as a significant cultural and archaeological landmark, illustrating the ingenuity of the Incas who built this ancient city in the 15th century. The area features complex agricultural terraces, sophisticated water management systems, and religious structures that showcase the civilization’s connection to its environment. Machu Picchu is often referred to as the "Lost City" and remains a UNESCO World Heritage Site and a popular tourist destination.