High-end men's clothing store. Can't remember the name.Holyoke Center, like the Prudential, is a good example of a modern building that had to be extensively changed before it interacted well with its surroundings. The Au Bon Pain was the first step -- whatever was there before it attracted very little pedestrian traffic and deadened the entire plaza.
If they opened another cafe where the Cambridge Savings Bank is now they could fill the rest of the plaza with seating, too.
How hard would it be to convert at least the SBWaterfront portion of the Silver Line to light rail (ignoring cost)?
However, doing that would eliminate a regular place for street musicians in good weather.
This is supposed to be built upon eventually, but I don't know if the Turnpike Authority has even tried to sell the air rights yet.
I do wonder why the ramp at the right of the photo (which would allow cars to enter the tunnel from North Street) was never opened to traffic.