On Friday, Turkish President Recep Tayyip Erdogan ceremonially opened Istanbul’s third bridge spanning the Bosporus, the strait that runs through Turkey’s biggest city and separates the continental land masses of Asia and Europe. The bridge is the $3 billion centerpiece of a vast series of infrastructure projects planned by Erdogan and the country’s ruling government in a bid to boost a flagging economy and clear up traffic congestion across a crammed metropolis. Perched at the entrance to the Black Sea, it’s billed as a the world’s widest suspension bridge, with eight highway lanes for vehicles and two rail lines.