Machu Picchu 101 | National Geographic

– [Narrator] The stone city of Machu Picchuis one of the most fascinating archeological siteson the planet.Located northwest of Cuso, Peru, Machu Picchuis a testament to the powerand ingenuity of the Inca people.During its prime, the Inca civilization stretchedabout 2500 miles along South America’s Pacific...

Pregnancy 101 | National Geographic

Pregnancy 101 | National Geographic

(elegant piano music)– [Narrator] The product of millions of years of evolution,the human body is capable of many remarkable things,but none of which may be quite so incredibleas the development of life in utero.(calm music)Over three million babies are borneach year in the United States...