New SF Skyline

Despite being branded as the earthquake city, three proposals for a new San Francisco skyscraper have been unveiled. New building will be taller than Transamerica Pyramid and will be the tallest building on the west coast. Here are the designs:
1. English architect Richard Rogers and his firm Rogers Stirk Harbour + Partners designed a tower for Forest City Enterprises with a streamlined metallic look that has marked other projects by the renowned architect.

2. Cesar Pelli, designer of dozens of towers worldwide in recent decades, and his firm Pelli Clarke Pelli would insert a tapering tower into the skyline next to a terminal with a rooftop open space. Hines is the developer.

3. The San Francisco office of Skidmore Owings Merrill, working for Rockefeller Group Development Corp. They propose a tower that twists as it rises, topped by a glass veil extending another 10 stories into the air.

The Transit Tower is expected to be an iconic presence that will redefine the city's skyline, while incorporating the latest in green building and seismic safety systems. The winner will be selected on Sep 20th.
SOURCE