Before 1914, traveling from the East Coast to the West Coast meant going by land across the entire United States. To go by sea involved a long journey around South America and north along the Pacific Coast. But then, in a dangerous and amazing feat of engineering, a 48-mile-long channel was dug thro...

Before 1914, traveling from the East Coast to the West Coast meant going by land across the entire United States. To go by sea involved a long journey around South America and north along the Pacific Coast. But then, in a dangerous and amazing feat of engineering, a 48-mile-long channel was dug through Panama, creating the world's most famous shortcut: the Panama Canal