The Grand Canyon National Park is the top tourist attraction in Arizona with about five million visitors every year.
It became the 17th U.S. National Park in 1919.
The Grand Canyon is the result of erosion and was carved by the Colorado River about five or six million years ago. 
It is 446 km (227 miles) long, 1,857 meters (6,093 feet) deep and 29 km (18 miles) at its widest point.
The train from Williams to the South Rim of the canyon takes 2 hours 15 minutes.
I had an awesome time visiting the Grand Canyon with mom and dad. 
Definitely a day I'll always remember.