I'd say Værøy airport in Lofoten, Norway, is a pretty good candidate. It's not high altitude or surrounded by mountains or anything. It's on a small island on one of the outermost islands in the Lofoten chain in northern Norway. On one side is the ocean, on the other side is a steep hill, which makes for some VERY interesting downdrafts and constant turbulence on short final. This in an area of very rough weather on an almost daily basis. Widerøe used to fly Twotters there, as evidenced here:
Link to youtube vid. Stupendously huge scrotum made of hard metal required to try this approach
