Turkey is often described as the link between Europe and Asia -- now a tunnel will connect the two continents . The Marmaray link is 76-kilometers long and has cost $ 4.5 billion . It's expected to open in 2016, but it may be delayed until 2018 due to construction delays on other projects. Prime Minister Erdogan may , however , face public opposition to his infrastructure drive .
Turkey is often described as the link between Europe and Asia -- now a tunnel will connect the two continents . The Marmaray link is 76-kilometers long and has cost $ 4.5 billion . It is part of the government 's ambitious plan to expand the country 's economy . Prime Minister Erdogan may , however , face public opposition to his infrastructure drive .