Answer:
Hey there!
Nabta Playa, is in the Egypt, and is a fine example of megalith architecture. It is a lot, lot, lot older than stonehenge.
Hope this helps :)
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These are some of the early cave painting sights though:
<span>Cave of El Castillo, Spain.Lascaux, France.Grotte de Cussac, France.Pech Merle, near Cabrerets, France.La Marche, in Lussac-les-Châteaux, France.Les Combarelles, in Les Eyzies de Tayac, Dordogne, France.Chauvet Cave, near Vallon-Pont-d'Arc, France.<span>Cave of Niaux, France.</span></span>