Walkers stride out on a marked footpath on the Pico Ruivo on the island of Madeira, Portugal, Europe

A lawn at Blackwell house being laid out for Lawnpaper, part of the William Morris exhibition, where the environmental artist Steve Messam is cutting the lawns into a William Morris pattern, Bowness, Cumbria, England, United Kingdom, europe

A lawn at Blackwell house being laid out for Lawnpaper, part of the William Morris exhibition, where the environmental artist Steve Messam is cutting the lawns into a William Morris pattern, Bowness, Cumbria, England, United Kingdom, europe

Cairns on the hiking trail, Glacier du Tour, glacier and mountain peaks, high alpine landscape, left Aiguille du Chardonnet, Chamonix, Haute-Savoie, France, Europe

Walkers next to waymarker, South West Coast Path, signpost to Porthcurno, Treen, St Levan, Cornwall, England, United Kingdom, Europe

Road, Bighorn Canyon National Recreation Area, Wyoming, USA, America

Aerial view, Constantin 6, 7, Schachtzeichen RUHR.2010 art installation, Bochum, Ruhrgebiet region, North Rhine-Westphalia, Germany, Europe