The Incas finely crafted this stone alcove in a wall at Machu Picchu, a magnificent archeological site in the Cordillera Vilcabamba, Andes mountains, Peru, South America. Machu Picchu was built around 1450 AD as an estate for the Inca emperor Pachacuti (14381472). Spaniards passed in the river valley below but never discovered Machu Picchu during their conquest of the Incas 1532-1572. The outside world was unaware of the "Lost City of the Incas" until revealed by American historian Hiram…
