New York, USA
The gorge at Watkins Glen is the best-known in the Finger Lakes region. The one-and-one-half-mile-long trough was scoured by glaciers, creating 19 waterfalls and 300-foot shale and sandstone cliffs.
Foot trails follow the rim of the gorge, some of them blazed centuries ago by Native Americans. The gorge trail, with over 800 stone steps, follows the gorge, going over and under waterfalls.