Beautiful stripes in the landscape of the Quebrada de Humahuaca, a narrow mountain valley located in the province of Jujuy in northwest Argentina, miles north of Buenos Aires. It is about 96 miles long. - photo from Geology IN
Machu Picchu: a pre-Columbian Inca city situated on a mountain ridge in Peru. A symbol of the Inca Empire. It's often referred to as "The Lost City of the Incas". Nowadays Machu Picchu is one of the seven wonders of the world.