Here's your daily look at five stories we're following:
1. Convention Center labor: The board of the Pennsylvania Convention Center has approved new work rules that will let exhibitors do more of their own work. Four of the six unions that work at the site have signed on to the agreement, and the two remaining unions -- the Teamsters Local 107 and Carpenters Local 8 -- could no longer be working at the center by the weekend.
2. Philadelphia Award: John and Leigh Middleton will accept the Philadelphia Award this afternoon. The prestigious honor recognizes significant contributions to the Philadelphia community. The couple typically operates anonymously, but have donated extensively to Project HOME, the University of Pennsylvania, the Philadelphia School District and other institutions.
3. Big Cat Crossing: The Philadelphia Zoo's new Big Cat Crossing is being unveiled today, providing a place for the zoo's large felines to roam above visitors.