The Ale Stones at Kåseberga in Skåne is swedens biggest stone ship (67 m).
The scientists disputing if what the really been used to and what the really is. Some think that it is a chief grave from the bronze age [1800 – 550 B.C) other mean that it is a astronomical observatory from a yet older time.
HDR stands for high dynamic range. HDR is using multiexposure pictures and blending them into one great picture. But still, it all depends on the person who is using it.
Photoshop CS2 has HDR rendering too but I use Phtotomatix from hdrsoft.com [link]
Ale Stones b&w (toned) version:[link]