Lace up those sneakers — it’s Philadelphia Marathon weekend. The free two-day Marathon Expo might help you get off the couch next year. Plus, the (literal) top dogs are celebrated this weekend at the National Dog Show when they compete for Best in Show. And when icons come to town, you’ll want to check them out … Chicago celebrates the 50th anniversary of its debut with friends including Robin Thicke, Chris Daughtry, and Judith Hill for a two-day concert at Ovations Hall in Atlantic City that will be…
