PLEASE HELP ASAP!! background information & four facts about machu picchu

1. Unfortunately, most cities built by the Inca civilization were destroyed by the Spanish conquest. Machu Picchu was in a hidden location—invisible from below—and not found, making it one of the most well-preserved Inca cities and an archeological gem.

2. Machu Picchu was an astronomical observatory, and its sacred Intihuatana stone accurately indicates the two equinoxes. Twice a year, the sun sits directly over the stone creating no shadow.

3. A long-standing dispute between Peru and Yale University has existed over the artifacts collected by Bingham during his exploration of the site. Yale maintains that they own the items while Peru insists they were given on loan.

4. Machu Picchu was only known locally until Yale Professor Hiram Bingham re-discovered the site in 1911. His book, The Lost City of the Incas, was based on his findings.

Explanation:

More than 7,000 feet above sea level in the Andes Mountains, Machu Picchu is the most visited tourist destination in Peru. A symbol of the Incan Empire and built around 1450AD, Machu Picchu was designated a UNESCO World Heritage Site in 1983 and was named one of the New Seven Wonders of the World in 2007.

what are local authorities doing to fix the problem

explanation: