High in Andes in Peru, South America, lies one of the new seven wonders of the world. This place is called Machu Picchu. Was it a city in the past? Or was it a fortress? No one knows for sure. The site located on a mountain ridge has ancient ruins from 15th century. It still remains a mystery that how such an estate of stone structures was built at a great height.

The only thing we do know for sure is that the site was built by Inca warriors. Inca was an ancient civilization that ruled a part of South America in the 1400′s, almost 600 years ago. Incas were skillful architects and great warriors. They lived in the mountain peaks of Andes with great ease.

Machu Picchu is constructed using huge stones, well polished and stuck firmly to each other even without mortar. Some structures appeared to be huts where Incas lived while other look like temples or other place of religious significance.

Incas had their plumbing in order too. Remnants of aqueducts and fountains are found all over as they were used by Incas as a source of water.

And it doesn’t end here! The site has perfectly carved terraces that are assumed to be used for farming to produce food for Incas . The most amazing part in all this is that Incas did all of this without using wheels, iron, horses.

Do you know that this lost city wouldn’t have been discovered if it wasn’t for an American historian and explorer Hiram Bingham who discovered it in 1911.

Today, Machu Picchu is the only symbol left of Incan greatness. Millions of people from around the world visit the stone city every year to witness the stunning wonder created by this ancient civilization.