Hurricane Sandy

Faced with one of the most daunting recoveries imaginable, ravaged cities in the Northeast must now clean up waterlogged buildings, burned homes and crippled infrastructure -- while millions of people remain without power.

Although some New York City transit and airports come back to life Wednesday, much of the country's biggest city remains paralyzed.

Meanwhile, New Jersey neighborhoods are still deluged under feet of water ahead of President Barack Obama's scheduled visit to the state Wednesday.

And states farther west are grappling with Superstorm Sandy's dramatic encore -- a blizzard that dumped 3 feet of snow in West Virginia and left hundreds of thousands in the shivering cold.

The arduous road to recovery seems as formidable as Sandy itself. (Source Youtube,CNN)