A new front door: A sneak peak inside the $1.2B Hub on Causeway

A new front door: A sneak peak inside the $1.2B Hub on Causeway

The TD Boston Garden is one of the first landmarks commuters from the north see as they cross the Zakim bridge or emerge from North Station. Soon, it will be The Hub on Causeway, a project that has been 20 years in the making.