Corinth Canal, Greece. amazing feat of a short cut connecting the Gulf of Corinth with the Aegean Sea, saves 430 miles! Built between 1882-1893 and 4 miles long, 26 feet deep,70 ft wide. It took 11 years and 4,000 workers to excavate 12 million cubic mt of hard rock. Im-passable for modern freight ships now and used mostly by tourist liners. Around 11,000 ships travel through every year! .