Santiago Calatrava's Chicago Spire

Shelbourne Development and Santiago Calatrava Chicago Spire

• aka The Twisted Tower
• Popular Science Engineering Grand Award Winner from their Best of What's New 2007
• 2,000 feet
• 1,193 condos
• the tallest residential building in the world (tall enough to see the curvature of the planet from the top floors!)
• completed in 2011
• green touches:
  
• cooling system that draws water from the Chicago River
• cisterns for collecting rainwater for landscaping
• reflective glass that will prevent migratory-bird collisions
• aiming to earn LEED “gold”
  
• thechicagospire.com