Baseball isn't the only source of rivalry between LA and San Francisco. The two California cities are also competing to have the West Coast's tallest skyscraper. 

In San Francisco, the planned $4.2 billion Transbay Transit Center planned for South of Market is said to include what will be the West Coast's tallest building.  

For more on this we're joined by Edward Lifson, a cultural critic and senior lecturer at USC's School of Architecture.