Climbers and scientists follow a trail above the Kali Gandaki River in Nepal’s remote Mustang region. More than 60 feet above are rows of unexplored man-made caves dug centuries ago. This sky caves may give secrets in the former kingdom of Mustang of Nepal
U.S. National Parks:Angels don’t need windows, but if they ever wanted to frame a great view, they might choose the North Rim’s Cape Royal (above) and its noble companion parapet in Arizona.
