City Hall Plaza was filled by young entrepreneurs and businesspeople earlier this week as the hub of Boston held the 2018 Forbes 30 Under 30 summit. Opened by a star-studded concert that featured performers such as Marshmello and Russ, the fifth annual summit also featured discussions by former and current politicians, musicians, activists and CEOs.

  The Seaport District’s Innovation and Design Building is showing promise for dining and businesses, with eight shipping container businesses set to open shop near the property and attractions...