Panorama view of hilltop medieval towns of MonteCastello di Vibio in sunset light, church and campanile, town of Todi, Tiber valley and snowcapped hills beyond, Umbria, Italy

Panorama view of medieval hilltop town of Monte Castello di Vibio, at sunset, with spectacular pink clouds, skyscape, Umbria, Italy

Todi: aerial view of red tiled rooftops, Palazzo del Populo, Duomo and Tiber valley beyond, on lovely spring morning, Umbria, Italy

Elevated view of village with fields in valley, Punakha, Bhutan

Aerial view of borgo farmhouse with tiled rooftops and church bell tower, fields, hills and distant mountains beyond, sunny late afternoon, Umbria, Italy

Full moon rising over hilltop town of Todi in blue twilight with gentle clouds over Tiber valley, hills beyond, Umbria, Italy

Aerial view of medieval town - stone houses and tiled roofs, covered with snow in early dawn light, overlooking Tiber Valley and distant hills, sunrise, MonteCastello di Vibio, Umbria, Italy

Field of wild poppies, with hilltop village of Montemulino and Tiber valley beyond, spring evening, Umbria, Italy

Sunny afternoon view of Todi hilltop town in Tiber Valley with dramatic cloud formation, MonteCastello di Vibio, Umbria, Italy

Alpenglow and glorious pink sky on snow capped Sibillini mountains with Tiber valley and olive trees in foreground, Umbria, Italy

Hilltop medieval town of MonteCastello di Vibio with full moon rising above church and campanile, hills beyond, Umbria, Italy

Hilltop medieval town of MonteCastello di Vibio with full moon rising above church and campanile, hills beyond, Umbria, Italy

View of Umbrian valley, green fields and bare trees, with hills and snowy mountain range beyond