and the breathtaking Andes mountains that surround this Colombian capital. Donald Trump's Approval Rating Collapses Ranking All-You-Can-Eat Chain Buffets From Worst To First The truth about the ...

The Earth's longest mountain chain isn't the Andes in South America, or the Himalayas in Asia, or even North America's Rockies. It's an underwater chain of mountains 47,000 miles long. The chain ...