My all time favourite place is the Roman fort on the Hardknott/wrynose pass in Eskdale, Cumbria. Walking across the site to the drill ground leads to a vantage point overlooking the valley below. To the right is a rugged, V shaped valley; bleak, harsh landscape, untouched by human hand. To the left the valley is a glacial U Shape; it is green, lush pastures, bordered by dry stone walls, a road winds along it and there is a much gentler, softer feel to it. I just love the contrast, and also viewing it from such a remote place. Makes me happy

ETA: And I say this having been fortunate enough to visit some truly spectacular places in the world... Himalayas, Inca Trail and Machu Picchu, Anti-Atlas mountains and Sahara desert...