Al Noor City

The video embedded above depicts a proposal to build de novo two metropolis-sized cities on each side of the Red Sea, then connect them by a bridge. As described in the Economist,

"Construction is supposed to begin next year, after the terms of sovereignty for the tax-free metropolises have been agreed. By 2025, says Mr Ahmed, Djibouti’s Noor City will have 2.5m people and its Yemeni twin 4.5m. Several million jobs will be created. An airport serving both cities will, he says, attract 100m passengers a year. A 29km bridge across the strait will connect Arabia and Africa by road, rail and pipelines, its towers among the tallest on earth. The cost? A mere $200 billion or so."

The whole project sounds impossibly megalomaniacal, with pie-in-the-sky unattainable goals. But it certainly is interesting.