Grand Canyon, near Duck on a rock viewpoint, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Rushing through a deep ravine, Gudbrandsjuvet, Trollstigen mountain road, Norway, Scandinavia, Europe

Waters of Gullfoss, Europe's biggest waterfall, thundering into a deep ravine, near Reykjavik, Iceland, Polar Regions

The Cares Gorge, 1000m deep, 12km long, limestone, Picos de Europa, Cantabria, Spain, Europe

Bridge crossing the deep ravine to the hanging houses, las casas colgadas, UNESCO World Heritage Site, Cuenca, Castile-La Mancha, Spain, Europe

Bridge crossing the deep ravine to the hanging houses, las casas colgadas, UNESCO World Heritage Site, Cuenca, Castile-La Mancha, Spain, Europe

Bridge crossing the deep ravine to the hanging houses, las casas colgadas, UNESCO World Heritage Site, Cuenca, Castile-La Mancha, Spain, Europe

Bridge crossing the deep ravine to the hanging houses, las casas colgadas, UNESCO World Heritage Site, Cuenca, Castile-La Mancha, Spain, Europe

The imposing Puente Nuevo bridge in Ronda, which crosses a deep ravine, surrounded by historic buildings, Ronda, Spain, Europe

Rushing through a deep ravine, Gudbrandsjuvet, Trollstigen mountain road, Norway, Europe

Deep canyon at the Gorafe desert, winding road to village Gorafe, aerial view, Gorafe Desert, UNESCO Granada Geopark, Granada province, Andalusia, Spain

Deep canyon at the Gorafe desert, winding road to village Gorafe, aerial view, Gorafe Desert, UNESCO Granada Geopark, Granada province, Andalusia, Spain

A long bridge with a glass platform spans a deep gorge, surrounded by green landscape and distant mountains, aerial view, Diamond Bridge, Diamond Glass Bridge, world's longest free-hanging construction, Dashbashi Gorge, Khrami River, Tsalka Nature Reserve, Kartlia, Georgia

One of the many passageways across deep ravines and over rivers trekking in Nepal. A suspension bridge made of aluminum, steel cables, and chain link fencing.