An iPhone panoramic from the 33rd floor of The Tower at PNC Plaza.  

Jeff Thorla, left, Contract Manager for The Tower at PNC Plaza, and Nana Wilberforce, right, PNC Energy Manager, guide United States Secretary of Energy Dr. Ernest Moniz, center, on a tour of The Tower at PNC Plaza on Monday, July 21, 2014.  

United States Secretary of Energy Dr. Ernest Moniz, second from left, tours the 28th floor of The Tower at PNC Plaza in Downtown Pittsburgh on Monday, July 21, 2014.  

United States Secretary of Energy Dr. Ernest Moniz tours the 28th floor of The Tower at PNC Plaza in Downtown Pittsburgh on Monday, July 21, 2014.  

Investigators go over the wreckage of the home that exploded, killing 2, in the 400 block of Louthan Road in South Beaver on Tuesday, July 15, 2014.  

Investigators go over the wreckage of the home that exploded, killing 2, in the 400 block of Louthan Road in South Beaver on Tuesday, July 15, 2014.  

A crowd surfer is pulled down at the Vans Warped Tour at First Niagara Pavilion on Tuesday, July 15, 2014.  

Moshe Karelefsky, 6, of Squirrel Hill, runs through jet of water at the Spray Park in Mellon Park in Shadyside on Monday, July 14, 2014.  

A woman looks out toward the Ohio River as the sun sets at the fountain at Point State Park on Thursday, July 10, 2014.  

A woman looks out toward the Ohio River as the sun sets at the fountain at Point State Park on Thursday, July 10, 2014.