The Grand Canyon of the Colorado is one of the most spectacular works of nature in the world. Its majestic beauty attracts some 5 million tourists each year, who come to admire the extraordinary rock formations in one of the…
The Grand Canyon of the Colorado is one of the most spectacular works of nature in the world. Its majestic beauty attracts some 5 million tourists each year, who come to admire the extraordinary rock formations in one of the…