The Hoover Dam (originally known as Boulder Dam) is an inspiring symbol of American engineering, built during America’s Great Depression as t...
Read MoreThe Grand Canyon Skywalk—a horseshoe-shaped, glass-bottomed bridge that juts out 70 feet (20 meters) above one of America’s most scenic...
Read MoreThanks to conservation efforts, marine life in the waters around Cozumel has bounced back after decades of overfishing. Nowadays, the onus is on obser...
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