Here's a short one for San Franciscans:
"At its creation, Treasure Island was 14' above sea level. It is now 9 feet. Earthquake activity would result in liquefactions and lateral spreading and could cause substantial damage if improvements are not made. Officials estimate the cost of shoring up the island for redevelopment at $100 million depending on reuse."
Treasure Island was originally constructed for the 1939 San Francisco World's Fair, and was intended to be the site of San Francisco's municipal airport. Alas, those plans were overtaken by events (World War II) and the island became a U.S. Naval Air Station until it was returned to the city in 1997.
With the right (wrong?) kind of earthquake we could rename it Atlantis.
