On the first Saturday of March, thousands of Iditarod enthusiasts line Anchorage's historic Fourth Avenue to participate in the celebratory send-off.

CNN: Iditarod: A spectator's guide

Thursday's attack was at least the fourth this year on Timbukto's historic tombs, said Osmane Halle, the former mayor of Timbuktu.

CNN: Mali Islamists destroy tombs in Timbuktu

Of the 30 largest metros covered by Zillow, only Cincinnati (3.1 percent less), Chicago (3.9 percent less), Cleveland (6.7 percent less), Atlanta (13.9 percent less), Las Vegas (14.6 percent less) and Detroit (25.5 percent less) posted price-to-income ratios in the fourth quarter of 2012 that were less than historic norms.

FORBES: High Home Price-to-Income Ratios Hiding Behind Low Mortgage Rates