Panama Canal, Panama!
The Panama Canal began in 1904 and finished 1914 is a 77 km (48 mi) ship canal in Panama that joins the Atlantic Ocean and the Pacific Ocean and is a key conduit for international maritime trade. Annual traffic has risen from about 1,000 ships in the canal's early days to 14,702 vessels in 2008, displacing a total 309.6 million Panama Canal/Universal Measurement System (PC/UMS) tons.
One of the largest and most difficult engineering projects ever undertaken, the canal had an enormous impact on shipping between the two oceans, replacing the long and treacherous route via the Drake Passage and Cape Horn at the southernmost tip of South America. A ship sailing from New York to San Francisco via the canal travels 9,500 km (5,900 mi), well under half the 22,500 km (14,000 mi) route around Cape Horn.