Dry-stone walls of Machu Picchu ruins of Inca citadel in Peru, South America

ancient cities ancient city ancient history ancient sites inca architecture incas layered lost city of the incas peru landscape peruvian rural scene settlement settlements south american stepped stone blocks stone buildings stone walls stones tourist site unspoilt architectural close up conservation daytime dry stone walls dwellings historic sites historical site holiday destination holidays horizontal layers outdoors outside preservation preserved ruin ruins stock image stock photo stock photograph tourism tourist attraction tourist sights tourist sites traditions travel travel photo travel photograph travel photography travel stock travels vacation vacations walls travel destinations travel destination building exterior color image color colour scenic scenics landscapes tourism destination