The Grand Canyon Skywalk
The largest known crack in the world, The Grand Canyon, is a canyon in Arizona carved by the Colorado River. The Grand Canyon is 446 km long and 29 km wide and attains a depth of over 1,800 meters.
According to some dates, the canyons were made by the Colorado River some six million years ago. Read more
Located in Nevada, Hoover Dam is a place that’s worth a day visit to go see. Built to create Lake Meade, and control the Colorado River, Hoover Dam is one of the most recognized man made constructions around. One of the most interesting facts about the Hoover Dam is that it contains more masonry than the Pyramid of Giza. Three and one-quarter million cubic yards. There are 4,360,000 cubic yards of concrete in the dam, power-plant and appurtenant works. This much concrete would build a monument 100 feet square and 2-1/2 miles high; would rise higher than the 1,250-foot-tall Empire State Building if placed on an ordinary city block; or would pave a standard highway 16 feet wide, from San Francisco to New York City. Read more