Yes, Sears Tower is in use today.
The Sears Tower was renamed Willis Tower on July 16, 2009. I'm not sure how much it would cost to build today but I know it is worth over $1 Billion USD today.
It is an office building.
It was made of steal.
It was made of steal.
sears tower.
50 stories are on the sears tower
The Sears name rights expired in 2003 but the Insurance broker Willis from London leased a major portion of the tower asking in exchange the rights of the name. So as in TODAY July 16th 2009 The Tower's name will be Willis Tower
It was an office buildiing created as a corporate office for the Chicago based retailer Sears.
The Sears Tower is now officially called Willis Tower.
drywall
steel and glass
The Sears Tower, now known as the Willis Tower, is 108 stories tall.