The G. Fred DiBona Jr. Building, formerly known as the Blue Cross-Blue Shield Tower or IBX Tower, is a skyscraper in Philadelphia, Pennsylvania housing the headquarters of Independence Blue Cross (the Blue Cross-Blue Shield-affiliated organization in the five-county Philadelphia area).

It was renamed in 2005 after the company's president and CEO, who died of a brain tumor at age 53.

The building was originally intended to have a twin tower just to its west but the office-space requirements of the company ultimately ended plans for it.

That lot remained vacant until an apartment building [1] was built on it around 2015–2016.

Alain Robert, the famous "French Spider-Man", scaled the building to the 44th floor in 1997, two years after the back-lit Blue Cross logo was added to the building's pediment.