(SAYING) On the southern coast - known as the Costa del Sol - block after block of apartments lie empty or half finished, many of them designed for foreign buyers who have long since abandoned the idea of investing in Spain.

VOA: standard.2010.06.24

Two-fifths of the world's cities of 1m-10m people, and 15 of the world's 20 megacities, lie on or near a coast, where many are at risk from flooding.

ECONOMIST: Bursting cities, bust infrastructure