PNC Park Makeover: Pirates Ballpark Upgrades Revealed
Pirates unveil 2015 PNC Park improvements
The Pirates' PNC Park lease was set up to benefit the public, too. It has rarely paid off.
Pirates to spend $11 million to expand retail store, upgrade concession stands at PNC Park
Pirates announce several renovations to PNC Park
Pirates plan for $11 million upgrade to PNC Park - Pittsburgh Business Times
Behind the scenes of Pirates' plan to transform space near PNC Park
Pittsburgh Sports History Driving Tour - Clio
PNC Park - Wikipedia
Tilt shift photo of PNC Park - home of the Pirates : r/baseball
New And Renovated Features Unveiled For Pirates' 22nd Season At PNC Park - CBS Pittsburgh
A very gentle massaging:' Improvements planned to the outfield section of PNC Park for next season