How you spell it -- Machu Picchu, Machu Pichu, Machu Piccu, Maccu Piccu or Macchu Pichu -- is the first of many mysteries.

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Exploring Peru With My New Family

By Jenny Hartshorne

Since I’ve been back from my seven-day vacation in Peru, friends ask me, 'Hey what have you been up to this summer?' I love saying I went to Peru... There's a bit of mystery to it. Not the same as 'Went down to the shore for a week.' I say 'Well, I was in Peru, went to the Amazon Rainforest and stayed in a cool jungle camp with thatched huts and hammocks in front, macaws and parrots flying free, tarantulas in the trees nearby. The jungle was full of boas, anaconda, monkeys and of course lizards of all sizes.' I organized the trip with my new blended family by signing up with Active South America, a really first-rate tour company. Since there were only five of us we were matched with another family of our size. Read more...

Machu Picchu is both the best and least known of the Inca sites. Since its discovery on July 24, 1911, by North American Hiram Bingham, Machu Picchu has been considered one of the world's greatest architectural and archaeological monuments, due to its extraordinary magnificence and harmonious structure.

At 2,400 meters above sea level, in the province of Urubamba, department of Cusco, Machu Picchu surprises us because of the way its stone constructions are spread over a narrow and uneven mountain top, bordering a sheer 400 meter cliff side of the Urubamba River canyon.

Why and how was Machu Picchu built?

Machu Picchu is a citadel shrouded in mystery, and to this day archaeologists have not definitively uncovered the purpose of this city of stone. The site covers an area of about one square mile, and stands in a region that the Incas considered to be magical, due to the meeting of the Andes mountains with the mighty Amazon river. When 135 bodies were discovered while exploring the site, 109 of which were female, some believed that Machu Picchu could have been a monastery where acllas (young girls) were trained to serve the Inca and the Willac Uno (High Priest). Others said it may simply have been an advance settlement for further expansions planned by the Incas. Perhaps the mystery may never be fully explained.

The surprising perfection and beauty of Machu Picchu's walls, built by joining stone to stone without using any cement or adhesive whatsoever, has led to many theories developing around how the city was constructed as well. It is said that a bird by the name of Kak'aqllu knew the formula for softening rock but by command, perhaps by the ancient Inca gods, had its tongue torn out. Others say there was a magic plant that could dissolve and compress stone. Nonetheless, mysteries and myths aside, the obvious wisdom and skill of the city's ancient builders -- evidenced by Machu Picchu's many squares, aqueducts, watchtowers, observatories and its sun clock -- is quite clear.

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Hike to Machu Picchu on the ancient Inca Trail

The Inca Trail between the Sacred Valley of the Urubamba River and the mysterious abandoned citadel of Machu Picchu is one of the world's classic treks. Climbing out of the river valley, crossing rugged mountain passes over 13,000 ft high, the trail winds through the Andes, passing numerous significant Inca ruins en route before descending through the Sun Gate to the silent stone city of Machu Picchu. To hike the Inca Trail is a thrilling experience and a great privilege. You need a permit from the Peruvian government to set foot on it, and there are strict limits on the number of permits issued each year.

But the Inca Trail is much more than a great hike. It is one small portion of an incredible network of such trails crossing high mountain ranges, bleak deserts, and raging Andean rivers, tying the Inca Empire together. At its peak expansion, Tahuantinsuyo (or The Four Corners as the empire was known) extended from what is now southern Columbia in the north, to central Chile in the south, covering a distance of about 5500 km (3400 mi). To rule such a vast domain, the emperor, or Inca, forged a remarkable communications system of approximately 18,600 miles of trails, paved through much of its length, stepped where need be, through tunnels where necessary, and using gossamer suspension bridges built of straw ropes to cross rivers unfordable in the wet season.

The roads served to move the conquering Inca armies, and were generally wide enough for a minimum of two warriors to travel abreast. A system of runners stationed at rest houses known as tambos sped messages along the roadways, much like the Pony Express mail of the old American West. The Inca, at his empire's capital in Cuzco, could receive news from far away Quito as rapidly as a letter crosses between the two cities in today's mail.

As remarkable as this highway system was in the days when it was built, used and maintained, it is an astounding testimony to its construction that so many segments remain serviceable today, after half a millennium of neglect. Clearly the Inca highway system ranks as one of the greatest engineering achievements of pre-industrial man.

The full Inca Trail is approximately 40km long. Spread over 4 days, this amounts to about five hours walking per day, although you can walk at your own pace - you are not forced to walk with your group the whole time. It is not a difficult walk, although there are a couple of high passes, and a steep climb on the second day, so a basic level of fitness is required.

Read the day-by-day Classic Inca Trail itinerary and the Lares Inca Trail Itinerary.