India, March 25 -- There are few natural wonders that can challenge the great jaw-dropping size and beauty of the Grand Canyon. It is a mile (1.6 km) deep and 10 miles (16 km) across, showcasing an eye-catching array of layered red rock that reveals millions of years of geological history in a single glance. It is a wonder that is so bold, big, and beautiful that it marks planet Earth in a scar that can be seen from space.

To see the 277-mile (445 km) canyon, you should visit Grand Canyon National Park in northern Arizona, a protected area that contains most of the canyon and the Colorado River that runs through it.

"The canyon landscape itself is the main draw for visitors from all over the world," said Joelle Baird, a public affairs o...