Carrowkeel

A shot of one of the tombs at the Carrowkeel megalithic cemetary in County Sligo, Ireland.  The tombs are estimated to be around 5000-5500 years old (predating the Egytian pyraminds at Giza by around 500-800 years).  The tombs are completely intact, and you can even crawl inside of a couple of them.  The best part is that they seem to be overlooked by most tourists; we were the only ones there when we went to visit them.